Follow Grandstand's live coverage of Day Seven of the London Olympics, where we see the first track and field action at the Olympic Park.
7:45am: In a shock on the sand, the reigning men's gold medallists, US pair Todd Rogers and Phil Dalhausser, have been knocked out of the competition by lowly-ranked Italian duo Daniele Lupo and Paolo Nicolai 21-17, 21-19. The women's favourites, Brazilian pair Larissa Franca and Juliana Felisberta, thumped their way into the quarter-finals by beating the Dutch team of Madelein Meppelink and Sophie van Gestel 21-10, 21-17.
7:37am: One for the humour files. We about South Korean Oh Jin-hyek's gold medal in the individual archery with his defeat of Japan's Takaharu Furukawa. Apparently he's been saddled with the unflattering nickname of the "Soft Drink Pig" due to his fondness for fizzy drinks.
7:18am: A usually unflappable Andy Murray says he's not been able to stop smiling since :
"I know how much winning tonight meant to me. It was one of the biggest matches of my career, one of the biggest wins of my career. It was one of the most emotional I've been after a match. I haven't stopped smiling since I came off the court. The atmosphere was unbelievable. We always said night matches at the US Open had the best atmosphere, but it's not even close to what it was today."
7:08am: Poland's Tomasz Majewski has retained his Olympic men's shot put title with a season's best throw of 21.89m. The 30-year-old is the first man to win the event twice since American Parry O'Brien (1952, 1956). Germany's David Stourl took silver and 2007 world champ Reese Hoffa of the US the bronze.
7:05am: Our correspondent Emma Alberici () reports that Australian rower David Booth has been sent home from the Olympics for smashing shop windows in London while drunk. Booth has apologised to the two shop owners and fronted the media to apologise to his team-mates, the Australian Olympic Committee and the country:
"The damage I caused was not motivated by any malicious intent to steal or to destroy, but was rather an emotional outburst and an inappropriate expression of my disappointment and frustrations with our result in a very close and hard-fought final."
7:00am: Ethiopian queen Tirunesh Dibaba has unleased a withering 62-second final lap to blitz the field in the women's 10,000m in 30:20.76. Kenyans Sally Jepkosgei Kipyego (30:26.37) and Vivian Jepkemoi Cheruiyot (30:30.44) round out the podium. Australia's Eloise Wellings finished at the back of the field.
6:50am: Home favourite and 2009 world champion Jessica Ennis has a 184-point lead after the first day of the heptathlon. After clocking a world record 12.54 seconds to win the 100m hurdles in the first of the four disciplines, the 26-year-old finished off with a personal best 22.83 in the 200m sprint for a total of 4,158 points. Lithuania's Austra Skujyte (3,974) is in second position with Canada's Jessica Zelinka (3,903) third. Russia's world champion Tatyana Chernova (3,849) is in ninth position.
6:40am: The plaudits are coming in thick and fast for the performances of the host nation at the velodrome - Team GB has won three of the four gold medals on offer so far. Says (team pursuit):
"At the end of the day, we got beat by a better team. They [did] everything perfect and they broke the world record, so you can't say anything and you can't complain. When someone does that, you have to accept it. We have to settle for silver, and we will. But hats off to Great Britain, they were perfect."
Meanwhile, our reporter Karen Barlow has sent in another snap from the velodrome:
6:30am: Swimming Australia head coach Leigh Nugent said yesterday that people calling out before the race affected Melanie Schlanger in the 100m freestyle final. It seems the same happened to Eamon Sullivan :
: "It's a shame spectators don't know that yelling out before the start distracts us. A few swimmers affected tonight."
6:10am: Both Mitchell Watt (7.99m) and Henry Frayne 7.95m) are through to the final of the men's long jump. With the top 12 going through, Watt was happy to settle for ninth position and didn't need his final jump. Frayne qualified in 11th. Marquise Goodwin, who won the US trials, and Brazil's world indoor champion Mauro Vinicius da Silva topped qualifying with 8.11m. However there was disaster for Panama's defending champion Irving Saladino, who relinquished his Olympic title by failing to register a jump.
6:05am: A disappointed Eamon Sullivan says he missed his start in finishing eighth .
"Again the swimming part was good, it was just the start that let me down. I was behind from the gun, which isn't a great spot to be in the 50. Tried extra hard, probably caught up a little bit but I was too far behind."
5:49pm: Henry Frayne's final effort in long jump qualifying is a 7.95m leap, placing him eighth with the top 12 to go through to the final. Mitchell Watt is currently in sixth position with one jump remaining.
5:45am: Aussie Ryan Gregson has made it through to the semis of the 1,500m after running 3:38.54 to finish ninth in the faster of the two heats.
5:40am: Aussie Mitchell Watt does a 7.99m in his second jump. He's not an automatic qualifier yet but should go through.
5:37am: The Brits are guaranteed a medal in men's singles with Andy Murray upsetting Novak Djokovic to set up a gold medal showdown against world number one Roger Federer. Djokovic goes into the bronze medal match against Argentine Juan Martin del Potro, .
5:35am: Our Olympics reporter Karen Barlow sent in this snap of Anna Meares preparing to race in the women's kierin earlier:
5:34am: It's a Dutch double in the semis with Ranomi Kromowidjojo winning semi two in 24.07. She's humbled second-placed Belarussian Aliaksandra Herasimenia (24.45). Cate Campbell's younger sister Bronte dead-heated for fourth in 24.94 but her time is not good for the final either. Disappointing.
5:30am: Dutchwoman Marleen Veldhuis takes the first semi of the women's 50m free in 24.50. Australia's Cate Campbell could only manage seventh in 25.01 and won't make the final.
5:25am: Australia's Ryan Gregson has finished ninth in the first heat of the 1,500m in a time of 3:38.54.
5:15am: Aussie Mitchell Watt fouls his first attempt in long jump qualifying.
5:13am: Frenchman Florent Manadudou wins gold in 21.34! American Cullen Jones grabs silver with Cielo settling for bronze. Sullivan was eighth in 21.98.
5:10am: Back to the Aquatics Centre and we've got Eamon Sullivan in lane one now in the 50m freestyle or "splash and dash", in case you haven't heard it called that already. World record holder Cesar Cielo of Brazil starts from lane four as the fastest qualifier.
5:00am: Dani Samuels gets through to the final of the discus with a throw of 63.97m. Excellent effort from the 2009 world champion. Read about it .
4:58am: Aussie Henry Frayne is leading his long jump qualifying group with a best leap of 7.82m. Countryman and one of the gold medal favourites, Mitchell Watt, is yet to compete.
4:56am: American Katie Ledecky wins the women's 800m freestyle final in 8:14.63, just missing out on breaking the world record. She dethrones the queen and current record holder Rebecca Adlington, who took bronze in 8:20.32 behind Mireia Belmonte Garcia of Spain (8:18.76).
TRACK AND FIELD:
4:53am: Australia's Melissa Breen, 21, was sixth in her 100 metres heat in 11.34 seconds to bow out. Jamaican Shelly-Ann Fraser-Price took it out in 11.00. Read about it .
4:46am: Dani Samuels is in eighth position in discus qualifying with one more throw to go. Her second throw was a foul.
4:45am: Anna Meares was at a bit of a loss to explain her kierin defeat when she spoke with Channel Nine:
"I got squeezed quite significantly with 200 metres to go and it just zapped all my speed unfortunately. I've got time bounce back for the sprint... I've got time to get over it and get ready."
4:42am: Another three-peat for Michael Phelps! His 17th Olympic gold and 21st overall comes in the 100m butterfly, his last ever individual swim at an Olympics. Astonishingly, he was seventh at the turn. South Africa's Chad le Clos and Russia's Evgeny Korotyshkin dead-heated for the silver medal. Milorad Cavic, famously pipped by 0.01 of a second by Phelps in Beijing, went out hard but faded to finish fourth.
4:36am: American superstar Missy Franklin takes gold in the 200m backstroke in a world record of 2:04.06. Australia's Meagen Nay finishes fifth in 2:07.43. Russian Anastasia Zueva took the silver with Franklin's countrywoman Elizabeth Beisel snaring bronze.
4:29am: Well, the Night Watchman is handing over to the capable hands of Joel "Jay Zee" Zander, who has plans to take you through the remainder of Day Seven. Hopefully there are some medals for Australia in the pool.
TRACK AND FIELD:
4:24am: Keep an eye out for Mitchell Watt and Henry Frayne coming up later this morning (AEST) in the men's long jump qualifying round. Watt, the world outdoor silver medallist, and Frayne, the world indoor silver medallist, are both coached by jumps guru Gary Bourne.
4:19am: Dani Samuels has started in the qualifying round of the women's discus - 60.02 metres with her first throw.
4:06am: More gold to the Brits - Victoria Pendleton just gets home to win the women's keirin final. More disappointment for Australia - Anna Meares was never in the sprint and finished fifth.
TRACK AND FIELD:
4:01am: Australia's impressed on Olympic debut to qualify for the men's 400 metres hurdles semi-final on day one of the track and field program in London. Not surprisingly, he is a little excited.
@Brendan_Cole: "Thanks so much for all the good wishes, tweeps! I reckon I might have another play at the Olympsies tomorrow!"
3:45am: Spare a thought for Anna Meares - she has to face off against Victoria Pendleton in the women's keirin final only minutes after the British national anthem was sung to mark the medal presentation for men's team pursuit. If there is anyone who can show cool nerves it is Meares.
3:32am: SILVER TO AUSTRALIA! The quartet of Jack Bobridge, Glenn O'Shea, Rohan Dennis and Michael Hepburn finish second to Great Britain in the men's team pursuit final. Congratulations to the Brits on another gold and world record of 3:51.659.
3:26am: It's raining medals for our friends across the ditch - New Zealand wins bronze in the men's team pursuit. Australia v Great Britain racing for gold now coming up.
3:24am: Serena Williams' love affair will Wimbledon continues after she beat world number one Victoria Azarenka in their singles semi-final, 6-1, 6-2. That sets up a meeting with Maria Sharapova in the gold medal match.
3:05am: No surprises but it will be Meares v Pendleton again as the highlight act in the keirin final with the Briton easily progressing from the second round.
3:00am: Anna Meares advances to the final of the women's keirin. She wins her second-round heat with British rival Victoria Pendleton coming up in the second heat.
2:51am: NEW WORLD RECORD! The Great Britain women's team pursuit squad added the fastest time ever recorded to its world title with an an effort of 3:15.669. That leaves Australia third quickest in qualifying and it will meet the US for a place in the final.
2:42am: Australia record a disappointing time of 3:19.719 in the women's team pursuit preliminaries. The Australian trio of Annette Edmonson, Meissa Hoskins and Josie Tomic are second fastest behind United States, with Great Britain and New Zealand still to ride.
2:31am: South Korea's Oh Jin-hyek won his country's first men's Olympic individual archery gold with his defeat of Japan's Takaharu Furukawa in the final at Lord's.
2:19am: Australia's Tom Slingsby leads the standings in the men's Laser following race seven and eight. The multiple world champion won race eight to hold a two-point lead over Cypriot Pavlos Kontides. .
2:11am: Great news for the Australian women's water polo team with an 11-8 victory over Russia in their Group match. The Stingrays remain undefeated in the Olympic competition after three matches. .
1:57am: Meanwhile, Maria Sharapova will play off for gold in the women's singles after beating fellow Russian Maria Kirilenko 6-2, 6-3 in their semi. Serena Williams and Victoria Azarenka to face each other in the second semi.
1:51am: The Fed Express is still on track! Roger Federer has survived a marathon three setter to beat Argentine Juan Martin del Potro 3-6, 7-6 (7-5), 19-17 in the men's singles semi-finals. The third set took a staggering two hours and 43 minutes. Federer will play either Andy Murray or Novak Djokovic in the final. .
1:44am: It is the Brits who Australia will meet in the team pursuit final, with the host nation posting a time of 3:52.743. This will be a repeat of the world championships final held in Melbourne back in April, which Great Britain won.
1:37am: Australia might be behind New Zealand on the gold medal count, but at least it struck a blow with a victory over the Kiwis in the men's team pursuit to book a berth in the final. A slick time of 3:54.317 with plenty in reserve. Great Britain the likely opponent in the decider.
1.32am: Well, with the score in the tennis at 16-15 to Del Potro, I will hand over to Luke Pentony to take you through the next few hours.
1.22am: The tennis is still going at Wimbledon! Argentina's Juan Martin Del Potro has just battled back from 0-40 down to hold for 15-14 in the final set, which has been going now for more than 130 minutes. Switzerland's Roger Federer is serving to stay in the match. The only ones to benefit from all this appear to be Britain's Andy Murray and Serbia's Novak Djokovic, who play in the other semi-final, and one of them will play the (tired) winner in the gold medal match.
1.14am: Anna Meares has come second in her first round race in the women's keirin, qualifying for the second round. Meares went to the front in the final lap and went head-to-head with Britain's Victoria Pendleton, before Pendleton pulled ahead on the line. That got the crowd roaring at the Velodrome.
1.13am: After four dives in the women's 3m springboard, Sharleen Stratton is looking good for the semi-finals, with a score of 275.20. Her team-mate Jaele Patrick is on 231.15, and in danger of missing out on the semi-finals - the top 18 go through.
12.58am: Another update from the sailing - Brendan Casey has finished fifth in the 10th fleet race in men's finn, to place him 13th. Mathew Belcher and Malcolm Page have won race four in the men's 470 to stay in the lead ahead of the British crew. Belinda Stowell and Elise Rechichi have finished eighth in race two of the women's 470 to lie in 12th place. Nathan Outteridge and Iain Jensen have come ninth in race nine and fifth in race 10 in the men's 49er to stay in first place ahead of New Zealand with one race to come today.
12.50am: Grandstand's Matt Wordsworth has filed a report on the state of Australia's medal tally, particularly the fact that New Zealand have three gold medals on the board to Australia's one after nearly a week of competition.
12.46am: There is an amazing match going on in the men's tennis semi-final at Wimbledon right now - Switzerland's Roger Federer and Argentina's Juan Martin Del Potro are tied at 10-10 in the third set, after Del Potro took the first set 6-3 and Federer took the second 7-6 (7-5). The third set has been going for more than an hour and a half. The winner will play the winner of the second semi-final between Britain's Andy Murray and Serbia's Novak Djokovic for the gold medal.
12.33am: The track cycling begins in half an hour at the Velodrome, with Australia looking to win a gold medal through Anna Meares in the women's keirin event. The first round starts at 1am AEST, with the finals at 3.38am. The other gold medal on offer on night two of cycling is the men's team pursuit, where the British are hot favourites to add to their tally after breaking the world record in the preliminaries last night. The first round will take place at 1.18am, and the finals will be run from 2.59am.
12.30am: Blake Gaudry has failed to qualify for the final of the trampoline competition, after falling in his second routine. Gaudry got closer and closer to the edge of the trampoline, before crashing. He was unhurt, but scored only 34.995 for the routine for a total of 84.255. Gaudry finished in 13th position.
"It was disappointing. We had a bit of a high after the first routine, a personal best.
"I was a little bit worried about the first one. Unfortunately it didn't come together today."
12.24am: Australia's Cameron Hammond has lost his bout in the men's 69kg (welter) division to go out of the Games competition. Hammond was 2-2 against Canada's Custio Clayton after one round, and the two fighters were tied at 5-5 after two rounds. But the Canadian landed a series of big shots in the final round to clinch the contest, 14 points to 11.
11.59pm: The women's 3m springboard diving has started with the preliminary round. Australia's Sharleen Stratton scored 72.00 points in her first round dive while team-mate Jaele Patrick scored 67.50. As ever, the Chinese are the ones to beat, with Wu Minxia in front with a first dive of 78 points.
11.55pm: In trampolining, Australia's Blake Gaudry is lying ninth out of 16 competitors after his first routine in qualifying. Gaudry scored 49.260, behind Chinese leader Dong Dong who scored 51.160.
11.41pm: Australian boxer Cameron Hammond is up at ExCeL Arena in 20 minutes for his round of 16 bout with Canada's Custio Clayton in the men's 69kg (welter) division.
11.26pm: It's the second day of team and individual dressage competition at Greenwich Park. The Australian team have completed their routines. Lyndal Oatley scored 69.377 points on Sandro Boy, her cousin Kristy Oatley scored 68.222 on her horse Clive, while Mary Hanna scored 67.964 riding Sancette. There are still a handful of riders to go, whose scores will change the team standings, but right now the Australians are in fourth position behind Great Britain, Denmark and Spain.
11.14pm: If you're just joining us, the Opals had a crucial four-point win over Russia a little earlier this evening. Making as many headlines as the win, however, was a slam dunk by Australia's Liz Cambage, which may or may not be the first such dunk in women's Olympic basketball history.
11.08pm: Grandstand's Karen Barlow has filed a story on the case of the people removed from the Velodrome after abusing the parents of Australian Olympic bronze medallist Kaarle McCulloch.
11.03pm: Australia's David Chapman has bowed out of the men's 25m rapid fire pistol event at the qualifying stage. Chapman shot a total of 559 in the two-stage qualification to finish in 18th place. Leading qualifier was Russian Alexei Klimov, who shot a world record score of 592.
10.53pm: It's a busy day at Weymouth for the Australians in the sailing regatta. In the men's finn event, Brendan Casey came ninth in race nine today, to remain in 14th position. World men's laser champion Tom Slingsby has had a poor result in race seven, finishing in 15th place. He remains second overall behind Cyprus. The men's 470 crew of Mathew Belcher and Malcolm Page have finished second in race three of their class. They lie third behind the British crew. Defending Olympic champions in the women's 470, Belinda Stowell and Elise Rechichi, have opened their campaign with a 14th position in race one. There are more races to come, particularly in the men's 49er class, where Nathan Outteridge and Iain Jensen are leading the class after eight races. Races nine, 10 and 11 will all be completed today.
10.34pm: Grandstand's Karen Barlow - @KJBar - has just tweeted that the Olympic organisers, LOCOG, have said that three people have been ejected and one arrested over abuse directed at the parents of Australian cyclist Kaarle McCulloch.
A LOCOG spokesperson has said: "Three spectators were ejected - one of whom was arrested, for abusive behaviour at the Velodrome on Thursday evening. We won't tolerate abusive behaviour in our venues."
10.27pm: Australia's Youcef Abdi has just run his heat of the men's 3000m steeplechase. He positioned himself well, hitting the front with a lap to go, and was still in the top four going into the finishing straight, until the Australian hit the last steeple and tied up. He finished sixth and will miss out on the final.
10.13pm: The morning swimming session is over at the Aquatic Centre. Check out our
10.11pm: It's been a big morning at the rowing, with one silver and one bronze medal going to the Australian crews.
9.56pm: Well that was a tense finish at the basketball! A pair of free throws by Liz Cambage gave Australia some breathing space, then the Russians had five straight shots at the basket, gaining the rebound every time, but they couldn't get the basket they needed to put the pressure back on the Opals. Time ran out, and Australia wins by four points, 70-66. That is a vital win, and could make a huge difference in Australia's path to the medals next week.
9.51pm: The Opals are in a tight one at the women's basketball. Inside the final minute, it's Australia 68, Russia 66. Watch this space.
9.49pm: Australia has had a mixed start to the track and field program at the Olympic Stadium, but the home crowd's interest has been focused on British heptathlete Jessica Ennis.
9.46pm: Australian rower Josh Booth will apologise to business owners and pay $2060 in repair costs after his drunken rampage earlier this week. Read Grandstand's Matt Wordsworth's
9.40pm: It's now 3-1 to the Kiwis! Mahe Drysdale, the five-time world champion who won the bronze medal in the men's single scull in Beijing, has rowed the perfect race to take the gold medal from Czech Republic's Ondrej Synek and Britain's Alan Campbell in a time of six minutes, 57.82 seconds.
9.36pm: At the basketball, the Opals are out to an eight point lead against Russia. There is a tick over seven minutes left in the final quarter and the Australians are leading by 61-53.
9.19pm: SILVER MEDAL FOR AUSTRALIA! Kim Crow and Brooke Pratley have come second to British pair Anna Watkins and Katherine Granger in the women's double scull. It's another gold medal to the British, with the crowd going nuts at Eton Dorney. Watkins and Granger rowed at a high rate for the entire race. The Australians started to come at the British in the final stages, but they didn't have enough in reserve. Kim Crow now has a chance to win two medals in the one Olympics when she competes in the final of the women's single scull on Day Eight.
9.13pm: At the shooting, Warren Potent and Dane Sampson have failed to qualify for the final of the men's 50m rifle prone event. Potent shot 591 for 32nd position and Sampson shot 583 for 48th. Potent was the bronze medallist in Beijing, but he couldn't get close to the medals this time. He spoke after the event.
I'm happy with how I shot, the score just didn't turn out. It took a while to settle down into my usual rhythm. The wind was moving a little bit which normally I've got no problems with.
It's just one of those days where it wasn't my day.
9.10pm: The Opals are leading Russia by two points at half-time in the women's basketball. It's Australia 32, Russia 30 at the main break.
9.06pm: Back to the swimming, where the Australian men's team has finished second in their heat of the 4x100m medley relay behind the British team. The Australians had a strong swim but the British had enough in reserve to win the heat in a time of three minutes 33.44 seconds, ahead of Australia in 3:33.73.
8.59pm: The New Zealand win gives them two gold medals to Australia's one, and it could become three a little later, when rowing great Mahe Drysdale will start hot favourite for the men's single scull final.
8.57pm: Should we be getting worried here? New Zealand has overtaken Australia in the gold medal tally, with a win in the men's pair by world champion crew Eric Murray and Hamish Bond. The New Zealanders hit the front at the 1000m mark and went on to obliterate the field, with Australia's Brodie Buckland and James Marburg home in fifth.
8.51pm: Australia's women's team has produced a great performance to qualify fastest for the final of the 4x100m medley relay. From the leadoff leg by Emily Seebohm to the anchor leg by Brittany Elmslie, the Australians went straight to the front and were never headed. The team finished in three minutes 55.42 seconds, four seconds faster than the winning time of the Netherlands in the previous heat.
8.44pm: Jarrod Poort has finished seventh in his heat of the 1500m freestyle. Swimming in the same heat as China's Sun Yang, Poort finished with a time of 15 minutes 20.82 seconds.
8.40pm: Another good run on the track for Australia, with Tristan Thomas crossing the line in his season's best time 49.13 seconds, to come fourth in a fast heat of the 400m hurdles. He looks a good chance to go through to the semi-finals along with Brendan Cole.
8.37pm: BRONZE MEDAL TO AUSTRALIA! Australia's men's quad scull crew has come third in the final, behind Germany and Croatia. The time was five minutes 45.22 seconds, behind Germany's 5:42.48. A great result for the crew, given that Dan Noonan missed a lot of time out of the boat in the leadup to London with a rib injury.
8.28pm: Australian archer Taylor Worth has spoken after his heart-stopping shootoff loss to China's Xiaoiang Dai.
I was feeling confident and I shot well. The wind was a little tricky but that happens in match play. I love match play - it's my favourite. I am happy because this is my first time at the Olympics, this is my first major experience.
I will meet friends and family back home and rest. Then I'll need to sit down and re-set my goals, but I would like to go for Rio (2016 Olympics).
8.20pm: Australia's Brendan Cole has had a great start to the men's 400m hurdles. Cole ran a personal best time of 49.24 seconds, coming second in his heat behind Cuba's Amaurys Valle. He should qualify for the semi-finals.
8.13pm: Australia's Dale Stevenson has failed to qualify for the final of the men's shot put. Stevenson's best throw was 19.17 metres, good for 14th position. The top six qualify for the final, led by Germany's David Storl with 21.15m.
8.10pm: Australia has named its teams for the 4x100m medley relay races. The women's team is almost full strength, with Emily Seebohm leading off, followed by Leisel Jones, Alicia Coutts and Brittany Elmslie. The men's team will be Hayden Stoeckel, Brenton Rickard, Matt Targett and Tommaso D'Orsogna. The heats for the women's relay start at 8.35pm AEST and the men's at 20.49pm.
8.03pm: Australia's judoka in the heavyweight class, Jake Andrewartha, has been beaten in just 30 seconds in his elimination judo bout this evening. Britain's Christopher Sherrington gained an ippon (throw to the ground) to end the bout.
7.51pm: The Kookaburra's Jamie Dwyer has spoken about his goal tonight which has given him the Australian national hockey scoring record. One gets the feeling it has been a bit of a distraction:
It's good that it's finally here now and I can stop getting asked those questions and move on with my job.
It's a great honour, Mark Hager (the previous record goalscorer) was a role model of mine. To be the all-time leading goalscorer for my country is a privilege.
7.46pm: A little later, South Australian schoolboy Jarrod Poort will swim in the 1500m freestyle heats. Poort was the last swimmer added to the Olympic team. He broke his personal best by 11 seconds at the Olympic trials, but it was not enough for automatic qualification. His presence continues Australia's unbroken participation in the long-distance event at every Games since London in 1948.
7.41pm: Jessica Ennis has sent the crowd into a frenzy at the Olympic Stadium - she has run a world's best time of 12.54 seconds in the opening event of the heptathlon, the 100m hurdles. In comparison, Australian world champion Sally Pearson's best time this year in the 100m hurdles is 12.40 seconds. Not a bad start.
7.37pm: And just like that, Taylor Worth's Olympics are over! His Chinese opponent shot a nine-pointer, but Worth's last arrow drifted wide into the eight section, giving victory to Xiaoxiang Dai. Well done to Worth, however, he has had an amazing run through the elimination rounds.
7.34pm: It's happening again at Lord's! Taylor Worth had a chance to take his match againsts China's Xiaoxiang Dai by winning the fifth set, but he fell just short, and now it is off to a one-arrow shootoff!
7.30pm: Grandstand's Peter Walsh has reminded us about a phenomenal men's basketball match which happened last night, London time. The United States scored a phenomenal 78 points in the first half alone, going on to beat Nigeria by 156-73. The score was the highest match score in Olympic basketball history. So, who needs the old Dream Team anyway?
7.26pm: At the Olympic Stadium, Australia's Dale Stevenson has had his first of three qualifying throws in the men's shot put. Stevenson threw 18.38m, well short of the automatic qualifying mark of 20.65m.
7.23pm: We have a delay at the rowing. Due to adverse weather conditions - read high winds at Eton Dorney - the FISA Fairness Committee has re-allocated and re-drawn lanes for the finals. The B Finals will now start at 7.40pm AEST, with A Finals to follow.
7.18pm: Good news at the swimming. Bronte and Cate Campbell have come second and third respectively in their heat, to qualify for the semi-finals. Bronte finished in 24.87 seconds, and Cate touched the wall in 24.94.
7.03pm: According to Grandstand's David Morrow, there are extraordinary scenes at the Olympic Stadium, with a capacity 85,000 crowd in place for the first session of competition, all (or most of them) there to see Britain's gold medal hope in the heptathlon, Jessica Ennis. Ennis' battle with 2011 world champion Tatyana Chernova of Russia will be a highlight of days one and two.
7.00pm: It is chaos at the hockey! Australia conceded a penalty corner with three minutes left and Argentina's Gonzalo Peillat scored to make it 2-2. Argentina looked like the team had another penalty corner a minute later but it was overturned. A frantic final two minutes ensued, and after the siren sounded, both teams began arguing with the umpire over a series of controversial decisions. That is a draw, a poor result for the Australians, who have let a 2-0 lead slip.
6.48pm: If anyone can explain how the men's hockey match between Australia and Argentina is still 2-1, please let us know. Every 30 seconds or so there is a new attack, with both sides having clear chances to add to the scoreline. Somehow they keep missing, Australia's Glenn Turner being the latest culprit. It could be a long few minutes at the Riverbank Arena before the end.
6.45pm: We are 15 minutes away from the women's 50m freestyle heats at the Aquatic Centre, where sisters Bronte and Cate Campbell are drawn in the same heat for Australia. Cate Campbell will be far from 100 per cent after missing her 100m freestyle swim earlier in the week with a bout of gastro. Hopefully she will have enough of her strength back to make it through to the semi-finals, which start at 5.25am AEST tomorrow morning.
6.40pm: Later on at 8.15pm AEST, the Opals take on Russia in a battle for second spot in Group B of the women's basketball. A win would set Australia up to play the third-ranked team from Group A in the quarter-finals, which at the moment would mean Turkey.
6.33pm: It's end to end stuff at the Riverbank Arena, with Australia and Argentina having multiple chances to add to the score. The Kookaburras just had a stunning shot come back off the upright, but the Argentinians are proving dangerous as well. It's still 2-1, with a little over 20 minutes left.
6.30pm: There are three Australian crews in the rowing A finals tonight. The men's quad scull crew of Chris Morgan, Karsten Forsterling, James McRae and Dan Noonan are on at 7.10pm AEST, followed by Brodie Buckland and James Marburg in the final of the men's pair at 7.20pm, and Kim Crow and Brooke Pratley in the women's double scull final at 7.50pm. All three are chances for medals, with Crow and Pratley in the best form of the lot.
6.22pm: It's game on at the hockey! Argentina have scored, it's the first time Australia has conceded a goal at the Olympics. The score is back to 2-1 to the Kookaburras with half an hour left.
6.20pm: The first event on the track and field program this evening at the Olympic Stadium is the men's shot put, with Australian Dale Stevenson attempting to reach the final. to see some stats about the event.
6.16pm: One of the early highlights on tonight's program is Australia's Taylor Worth who faces China's Xiaoxiang Dai in a men's archery elimination match. The first arrow will be fired at 7.18pm AEST.
6.10pm: The Kookaburras have finally scored a second goal after wasting a series of chances. Right on half-time, Australia's Jamie Dwyer popped up to score, making him the Kookaburra's all-time leading scorer. Nice one, Jamie. It's 2-0 at the break.
5.58pm: Glenn Turner causing havoc on the right flank creating a number of chances but the Kookaburras unable to extend their lead with less than ten minutes to go before the break.
5.50pm: The next Aussie in action is Warren Potent in the 50m prone rifle shooting. He'll be hoping to improve on his bronze medal in Beijing. The qualifying is first at 6pm, with the finals coming up later at 9pm (AEST).
5.43pm: Australia go one-nil up from a penalty corner, Matthew Butturini following up to poke into the net after the Argentine stopper had blocked the original effort.
5.40pm: Nathan Burgers makes another fine save this time moving to his left and the danger is averted.
5.38pm: Early drama at the hockey. Rey Lucas has his effort from a penalty corner well saved. The referee awarded another. Australia appealed but the decision was upheld. The Kookaburras have no more appeals.
5.33pm: We're underway in the hockey and already the Kookaburras are peppering the Argentina goal.
5:25pm: Hello, I'm Andrew McGarry and welcome to ABC Grandstand Online's live coverage of Day Seven of the London 2012 Olympics. There's no waiting around for Aussie action today. The Kookaburras will shortly look to win their third straight match of the Games and back up their favourites tag for the Men's Hockey when they take on Group A whipping-boys Argentina.