Brooke Henderson is making good of an early goal to get herself more into contention by building a four-shot lead in the LPGA Tour's Tournament of Champions.
The Canadian ran off four birdies beginning at the second hole, was 9-under par by the time she stepped onto the sixth tee and played mistake-free for a 6-under 66 at Lake Nona.
The other 28 LPGA pros in the winners-only field swiftly entered into scramble mode just to keep her in their sights.
Henderson's closest pursuers going into the third round are Nelly Korda - at No.2 the top-ranked player in the field - England's Charley Hull and Wei-Ling Hsu of Taiwan. They each shot 69.
Henderson was sensational at the start, hitting a couple of wedges close to tight hole locations to set up two of her early birdies, and nearly holing a 6-iron for an ace at the 171-yard fourth hole. Making the start extra special was playing with Sorenstam for the first time.
"I feel like I'll remember it forever," said Henderson, who has made only one bogey in 36 holes. "Just one of those opportunities of a lifetime. We all look up to her out here on tour. She's kind and obviously a great player, and I think we can all learn a lot from her."
Korda headed off after the round to work on her putting after missing several good looks on the front nine, though she did have four birdies after the 10th hole.
Hull, meanwhile, who fled the cold weather of England for three days of practice in Morocco to prepare, said her swing was out of sorts, and worked hard to produce a score below 70.
A three-putt bogey on the final hole left her with a round of 69, alongside Hsu, five shots behind Henderson.
"Obviously, I've been playing in the frost, so it bounces miles. Our greens are thick. These greens are so fast compared to what I'm used to playing on," Hull said.
"Yeah, I was thinking today the Americans definitely have a massive advantage, but I love England too much to move anywhere else."
Hsu, who got here by winning the 2021 Pure Silk Championship, made six birdies but none after the 13th hole, completing her 69 with five pars.
Korda began her day in the wee dark hours, rising early to watch Sebastian Korda - her brother - win his match against No.7 seed Daniil Medvedev at the Australian Open.