She won the inaugural Augusta National Women's Amateur in April and the NCAA individual title a year ago.
That was enough to edge a pack on 268 that included Australian Su Oh, Japan's Nasa Hataoka and Americans Brittany Altomare and Lexi Thompson. Lexi Thompson is lying third three shots back after a 62, that matched the course record.
"I had a great number into No. 18 today, I had a ideal 8 iron", said Thompson. "I just felt really confident today with my ball-striking, which is awesome, and I rolled in a few putts, too". "It was good to end on an eagle in front of all the fans".
Jennifer Kupcho was another stroke back after her third 67. At even-par on her round through 15 holes, Henderson wasn't necessarily playing poorly.
Thompson started the day 10 shots off the lead at six under par.
"That's really cool", Henderson said. Bogeys on the third and 16th holes denied Thompson a 60. A 5-foot birdie got her started on No. 16 and she followed that up with another birdie at No. 17. "Kind of made my round feel a little bit better".
"Unfortunately, I didn't hit it that monumental at the recent time, however I made some in actual fact valid putts on my second nine", Thompson stated.
Brooke Henderson has written another chapter in Canadian golf history.
Henderson moved ahead of the Likes of Sandra Post, Mike Weir and George Knudson as notable Canadians with multiple success on their respective tours and by the time her career comes to an end, whenever that may be, she is likely to have established an nearly unreachable milestone in Canadian golf. But as to be expected, Henderson is not looking past the task ahead of her.
"That's so special and so incredible", said Henderson. "There's so many great players close to the top of the leaderboard. I'm just really excited for the rest of the summer and hopefully many more wins in the future".
The 21-year-veteran from Smiths Falls, Ont., gained the Meijer LPGA Classic, giving her nine occupation LPGA titles. Thompson, coming off a victory last week in New Jersey, shot 70-68 to reach 6 under.
"With these soft conditions you can take it pretty much right at it, which I've been doing", she said. It was the second title of the year for the 21-year-old prodigy, who also took the LPGA Lotte Championship in April in Hawaii. This week, she enters the final round of the Meijer LPGA Classic just two strokes behind Brooke Henderson's lead.
"I had about 197 into the last hole and a little into the wind, so it's a ideal number for a full 4-iron".
Su Oh's second-place finish in the LPGA Tour's Meijer Classic in MI is a potential turning point for the Australian. After 36 holes she was eight-under and tied-fifth. "I mean, I always like the chase, so I'll just go out there and play my game and see what shows up tomorrow".