Trae Williams and Rohan Browning have put in massive shifts but fell short of an appearance in the 100m final, which will be headlined by Jamaican superstar Yohan Blake.
The 2011 world champion clocked 10.06 seconds in the first of three semis on Sunday.
Blake, 28, is equal second on the 100m all-time list with a PB of 9.69 set in 2012 and is a red-hot chance to again break the 10-second barrier in Monday's final.
"I came out here and I feel good," said Blake, who is one of the headline acts of the Games.
"I just want to continue and tomorrow I'll just go out there and do the job. There is a lot more in the tank.
"I feel good and I love to race on Australian soil because not many people can do it. But 10.06 was comfortable and anything is possible."
Australian Rohan Browning was desperately unlucky to miss a berth in the final, finishing third in his semi behind Henricho Bruintjies.
Both men were timed at 10.26, with the times having to be extended to thousandths of a second before the South African was declared to have crossed the line ahead of Browning.
"It's a bit stiff but it's the nature of the beast," said the 20-year-old.
"It's the fractions of a second that differentiate the finalists from the semi-finalists and the great from the good.
"I'm still very much in a nascent stage of my career.
"It sucks eggs not to make the final but you've got to get up and get over it."
Fellow Australian Trae Williams was fourth behind Blake in the first of three semis in a time of 10.28, well shy of the 10.10 he clocked in the national trials at Carrara Stadium back in February.
"The first 60 metres felt like I was out with them but I just didn't have the legs to finish the last 40 off," said Williams.
"It's good experience I guess but I really wanted to make that final."
Australian record holder Melissa Breen was eliminated in the semis of the women's 100m with a time of 11.76.
The men's and women's 100m finals are both on Monday.
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