She began swimming at a young age at the Columbia Athletic Club in Portland.

[2] Following World War II, she married her coach, Al Sehorn, and began to set records in her best event, the breaststroke.

[1][3] Sehorn represented the United States at the 1952 Summer Olympics in Helsinki, Finland, where, at the age of 25, she was the oldest female member the U.S. swim team.

[4][5] She competed in the preliminary heats of the women's 200-meter breaststroke, posting a time of 3:13.7.

[4] Upon her return to Portland, Sehorn was honored as the first woman to receive the Bill Hayward Award, given to Oregon's top amateur athlete.