Ruby Lindquist, a 2018 graduate of Seward High School, won the 15th annual Alyeska Climbathon on Saturday in Girdwood.

In the climbathon, athletes have 10 hours to travel up the 2.2-mile North Face Trail, and its elevation gain of 2,000 feet, before traveling back down on the tram.

Lindquist won by doing 12 laps. Tom Ritchie was second with 11 laps, while Miles Knotek, another graduate of Seward High School, was third with 11 laps. The final climber to get 11 laps was Zachary Behney, who won the Tsalteshi Backyard Ultra this spring.

Just over 300 athletes participated in the event, which raises money to help end women’s cancers.

With her performance, Lindquist continued a strong September in the mountains. At The Rut Runs in Montana on Sept. 5, Lindquist competed in the 17.5-mile race, which has 7,800 feet of vertical gain and loss. The course also reaches the thin air of just over 11,000 feet.

Lindquist finished second with a time of 4 hours, 1 minute and 4 seconds. Bailey Kowalcyzk of Colorado won at 3:47.20. Kowalcyzk was scheduled to compete in the Mount Marathon Race in Seward this year, but canceled her entry. Lindquist finished seventh at Mount Marathon this year.