On Athletics Club

On Athletics Club (OAC) is a training group of professional distance runners sponsored by On.

The team is coached by Dathan Ritzenhein[1] and was founded in August 2020 with eight original members.

[3][4][5][6] In July 2023, Kelsey Quinn was announced as assistant coach for the team.

[7] Colorado's First Sub-Four Minute Mile On August 3, 2020, Joe Klecker and Olli Hoare became the first people to ever break 4 minutes in the mile on Colorado soil.

[9] She then won the 2023 New York City Marathon in 2:27:23, becoming the first woman since 1989 to win both races in the same year.