Both players laid up. They halved their first two holes this morning before Strom won the match with a par on the 19th hole. Those teams will be paired down to the final eight after Monday's round to compete in match play.
In the anchor match, Linnea Strom holed a 7-foot par on the 18th, and then sent the Sun Devils to the title match with a par on the first extra hole.
The Trojans led 4-1 when darkness halted play Tuesday night, forcing the teams to come back at 9 a.m. today to finish.More news: CT in $33M multistate settlement on over-the-counter drug quality
From about 40 yards short, Vaughn's eagle pitch rolled off the pin and set up a short birdie that squared the match when Valenzuela missed her birdie.
The Sun Devils weren't in the clear just yet.
"I'm not going to give up.' I went out and fought to the bitter end", Vaughn said.
Albane Valenzuela of Stanford won three of her last four holes to close out her match on the 17th hole, and the Cardinal took the first step toward reaching the title match for the third straight year in the NCAA Women's Golf Championship. Chou was well left of the green and made bogey.More news: House Intel panel likely to also subpoena Flynn businesses, Dem says
Vaughn, meanwhile, rallied from 3 down after 10 holes to square the match through the 15th, and her match against Hannah Kim was headed for extra holes when Strom closed out her match on the 15th hole.
Northwestern trailed at some point in all five matches and wound up winning the top two. Vaughn would not let her team down, roaring back to tie Kim on the 18th hole leading the competitions only tie.
Sophomore Janet Mao of Northwestern and Roberta Liti faced off in the penultimate matchup of the championship. "I was 2 down through three holes to start and it just came to me like, 'You are playing the golf course, not this player, ' because pars out here are going to win every time".
The No. 20 Auburn men's golf team opens NCAA Championship play in Friday's first round at Rich Harvest Farms on No. 10 at 6:45 am Central as the Tigers are one of only six teams to appear in six consecutive NCAA Championships. The other was Purdue in 2010.More news: Europa League final has lost its 'glow,' says Ajax coach