BYU's Elena Medeiros scored in the 21st minute as the Cougars defeated Utah Valley 1-0 in a first-round NCAA Tournament game on Saturday in Provo.
The win was BYU's fourth straight NCAA playoff victory at South Field.
"I'm really proud of the girls today," BYU coach Jennifer Rockwood said. "Anytime you get to the NCAA Tournament you know it's one and done so it puts a lot of pressure on both teams. I'm really proud of the way we played and the way we prepared."
The Cougars (16-2-2) will travel to face top-seeded Stanford in the second round of NCAA play Thursday.