The U.S. Open is all about hanging in and hanging on. The U.S. Open at the Olympic Club is all about avoiding that big number. The big number is all that keeps Brooke Henderson and Angel Yin from the top of the leader board. Its avoidance is all that has kept six golfers at the top of the charts. For giggles, imagine that Henderson and Yin toss rounds in the mid 60s on Sunday, and three or more of the top six struggle. You see where this leads, right? The 2021 U.S. Open is far from over, despite being three-quarters complete.

We learned five new things about this year’s competition, and we’ll share them with you now in the Saturday edition of Five Things We Learned at the U.S. Women’s Open.

1. Lexi Thompson has a chance

She’s in the lead with one round to go, but it’s not a large lead. Thompson missed the first three greens but recovered with a putt, a chip, and a sandie. That’s three misses that might easily have turned into bogey. See where this leads? Lexi’s misses have been left off the tee, no matter the club. She missed left off number one with driver; two with fairway metal; and three with iron. Her step-out move, where the lead foot jumps left to help clear the hips, can lead to the miss left.

On her side is her touch. She is putting from off and on the greens with tremendous pace awareness. Her sand game was impeccable, with wonderful up-and-downs at three and seven on day three. Her chipping through the thickish greenside rough has been forceful. All those things led to 66 on Saturday. Lexi has finished inside the top 10 at the Open on four occasions, including a career-best T2 in 2019. What will 2021 bring?

.@Lexi is in the LEAD in the #USWomensOpen!

She birdied the par-5 17th hole to get to 7-under par at @TheOlympicClub. pic.twitter.com/jgLRxXE8WQ

— U.S. Women's Open (USGA) (@uswomensopen) June 6, 2021

2. Yuka Saso is seeing all of the Lake course

The fearless young Filipina apparently has no problem making bogey. For a brief moment late, she was tied with Lexi Thompson for first, but made bogey at the last to fall back to 6 under par. The foozle was her fourth on the day, matching her birdie tally. Saso’s story could be much different if she had the ability to corral her emotions and game and avoid the bogey derailments. Saso reached eight deep at the 10th hole but made back-back bogeys at 13 and 14 to fall back.

What led to her bogeys? At four, she reached the green in regulation but putted timidly down the slope from distance, and missed the next one for par. At 13, she short-sided herself against a sucker hole location and could only minimize the damage by pitching to green center. At 14, she again overcooked an iron to the left and was unable to pitch and putt for par. At the last, her approach from the fairway did not release left. Instead, it nestled in thick greenside cabbage, and once again, minimized her options.

Saso will need better approach play on Sunday if she is to challenge Thompson for the title. She certainly has demonstrated the game, but will she pair it well with the proper demeanor? That remains to be seen.

Co-leaders in the 76th #USWomensOpen!

Yuka Saso's birdie at the 17th hole ties her with @Lexi at 7-under par at @TheOlympicClub. pic.twitter.com/jsoIN5rKKh

— U.S. Women's Open (USGA) (@uswomensopen) June 6, 2021

3. Mel Reid’s challenge faded away

It’s only fair to recognize the effort that the Englishwoman put forth in this year’s championship. She held a share of the opening-round lead but turned in higher and higher scores as the weekend arrived. On Saturday, Reid foundered with three double bogeys and five singles on her way to 78 and a tie for 23rd. As if mocking her plight, the golf gods allowed her to hole a 100-yard wedge for eagle two at the 11th hole. Alas, that moment and her birdie at the 15th were the only bright spots on a forgettable day for Mel Reid.

? FLY EAGLES FLY ?@melreidgolf knocks it in from 99 yards at the par-4 11th hole. @TheOlympicClub | #USWomensOpen pic.twitter.com/OhlkC5KH1u

— U.S. Women's Open (USGA) (@uswomensopen) June 5, 2021

4. What to do with Megha Ganne?

She’s precocious in her confidence, and her game has held up through three rounds. Ganne will again play in the penultimate pairing, this time with 2019 Open champion Jeongeun Lee6. Ganne has gone from 6 birdies to 3, to 2 on Saturday. This trend does not bode well. Either she is timid in her approach shots, or she is conservative in her strategy. What does Megha Ganne want from Sunday? She should want to play like she did on Thursday: fearless. Neither crazy nor casual, but fearless. Maja Stark is but four shots behind in the race for low amateur, so that prize is not guaranteed. If Ganne rediscovers her vibe from day one, she’ll make a run at the title and cement the low amateur baubles. If she plays like she did over the last 36 holes, well, you can extrapolate.

That was MEGHA!

Ganne will have a birdie attempt at @TheOlympicClub's 9th hole. #USWomensOpen pic.twitter.com/W7kfsvOnwH

— U.S. Women's Open (USGA) (@uswomensopen) June 5, 2021

5. Who wins on Sunday?

They say that the U.S. Open chooses you. It has already chosen Jeongeun Lee6 once, and it will select her again on the sixth day of June, 2021. Lee Thee Six did nothing on Saturday to confirm this hunch, and she will begin the final round four strokes behind the leader. She will begin it one group ahead of the leader, and we predict that she will be 3 under on her round by the sixth hole. This fast start will catch the attention of the top pairing, and will ultimately allow her to add a second Open trophy to her shelf.

2019 #USWomensOpen champion Jeongeun Lee6 with a beauty of a shot at @TheOlympicClub's iconic par-3 8th hole. pic.twitter.com/sVkVNdhySI

— U.S. Women's Open (USGA) (@uswomensopen) June 5, 2021