Red Wing junior Leah Herzog knew she played extremely well but didn't realize she carded a girls' golf state tournament record round.
Her record lasted all of 15 minutes.
Classmate Sophia Yoemans, in the foursome trailing Herzog, shattered the mark with a 9-under-par 63 in the opening round of the Class 2A meet Tuesday at Ridges at Sand Creek in Jordan.
Herzog wound up three strokes back, shooting a 6-under-par 66. The previous mark, held by numerous players, was a 5-under 67.
"That's the best golf I've seen in one day by two girls' players," said Red Wing coach Mark Herzog, in his 35th season of coaching. Leah is his daughter. "It was impressive."
Yoemans' 63 was one stroke short of the girls' all-time record by Maggie Heggerston of Pequot Lakes, who fired a 10-under 62 in a section tournament at Pokegema Golf Course in Grand Rapids in 2014. Heggerston just completed her junior season with the Gophers.
"It was an awesome round today," Yoemans said. "It's the lowest round that I've ever shot."
Yoemans, the state's No. 1-ranked player, got off to a blistering start, shooting a 6-under-par 30 on the front nine. She finished the day with nine birdies and no bogeys.