• Amy Yang’s three-round total of 202 is the second-lowest score for the first 54 holes in U.S. Women’s Open history. Juli Inkster shot 201 on the way to victory in 1999. The 72-hole scoring record is 272, shared by Inkster (1999) and Annika Sorenstam (1996).
  
  
• Yang will play in the final group on Sunday for the third time in the U.S. Women’s Open. She finished second in 2012 and fourth last year.
  
  
• Mo Martin and Gerina Piller had a laugh on Saturday when they were paired together for Round 3. “We realized our pairing today was Martin-Piller,” said Martin. Piller's husband, Martin, led the Web.com Tour’s Boise Open through three rounds and will seek his fourth Web.com victory on Sunday. Martin and Piller both shot 72 and will play together again on Sunday, starting at 9:52 a.m.
  
  
• Chella Choi’s nine birdies (in a round of 29-35–64) are the most in a round at the U.S. Women’s Open since Lorie Kane made nine in the second round in 1999.
  
  
• Nancy Lopez (1997) is the only player to shoot four rounds in the 60s in a U.S. Women’s Open (she finished second by one stroke to Alison Nicholas). Yang (67-66-69) and Lewis (69-67-69) will have a chance to match that feat on Sunday.
  
  
• In Gee Chun, who is alone in third place, four strokes behind Amy Yang, is playing in her first U.S. Women’s Open. The last player to win on her first attempt was Birdie Kim in 2005.
  
  
• Morgan Pressel, who is tied for ninth, and Lexi Thompson, who is tied for 18th, are attempting to notch their third top 10s in as many major championships in 2015.
  
  
• For the second consecutive day, no player recorded a bogey-free round. Karrie Webb and In Gee Chun were bogey-free in the first round.
  
  
• Five amateurs made the 36-hole cut, andn they are within three strokes of each other entering the final round. Megan Khang is currently the low amateur, tied for 37th at 214, one stroke ahead of Mariel Galdiano and Muni He.
  
  
• The past two champions, Inbee Park (2013) and Michelle Wie (2014) are among four players in a tie for fifth place through three rounds, six strokes behind Amy Yang. Seven Women’s Open champions made the 36-hole cut.
  
  
• Lee Lopez made a hole-in-one on the 156-yard sixth hole, using a 6-iron, in a round of 72 that left her in a tie for 35th place. It is the 23rd ace in U.S. Women’s Open history.
   

Ron Driscoll is the manager of editorial services for the USGA. Email him at rdriscoll@usga.org.