Sean O'Leary

United StatesUnited StatesActive
Born
Oct 26, 1991 (35 years old)
Events
1500 m · 3000 Metres Short Track

Sean O'Leary is a United States middle-distance runner, born on October 26, 1991. He competes primarily in the 1500m, Mile and 3000m.

His personal bests include 4:00.09 in the 1500m, 4:22.19 in the Mile, 8:43.35 in the 3000m, 8:39.69 in the 3000m and 15:00.09 in the 5000m. He is currently active on the international athletics circuit, representing United States.

Personal best · 1500 m4:00.09
2026 season best52:36Apr 12, 2026 · Washington Monument Grounds, Washington, DC
2026 season best
Personal best · 3000 Metres Short Track8:39.69
Last competitionMarine Corps MarathonOct 25, 2026 · 2:30:43
Marine Corps Marathon

As of Nov 13, 2026: 1500 m 4:00.09, 3000 Metres Short Track 8:39.69, 2026 season best 52:36 (Apr 12, 2026, Washington Monument Grounds, Washington, DC (USA)) · Last competition: Marine Corps Marathon, Oct 25, 2026, 2:30:43 · 35 years old

Personal bests

WA points calculator →
DisciplineResultAll-time2026
1500mMD 2012United States 1500 m all-time list4:00.09854 pts––
MileIndoorMD 20124:22.19862 pts––
3000m2012United States 3000 m all-time list8:43.35817 pts––
3000mIndoorVA 20138:39.69854 pts––
5000mNC 2013United States 5000 m all-time list15:00.09810 pts––
SemiNY 2026United States Half Marathon all-time list1:09:11846 pts––

Progression

SeasonDisciplineResultWindDateCompetitions
202610MilesRoa 52:36–Apr 12, 2026Credit Union Cherry Blossom 10 Mile
2026Semi 1:09:11–Mar 21, 2026Project 13.1
2026Marathon 2:30:43–Oct 25, 2026Marine Corps Marathon
2025Marathon 2:31:03–Apr 21, 2025Boston Marathon
2023Marathon 2:33:30–Apr 17, 2023B.A.A. Boston Marathon
2022Marathon 2:33:42–Jan 16, 2022Chevron Houston Marathon
20133000m-short-track 8:39.69–Jan 26, 2013–
20133000m Indoor8:39.69–Jan 26, 2013Fairfax, VA (USA) (i)
FAQ

Frequently asked questions

Sean O'Leary's 1500 m personal best is 4:00.09, set on May 3, 2012 in College Park, MD (USA).

Sean O'Leary competes in the 1500 m and 3000 Metres Short Track.

2026 season best: 52:36, set on Apr 12, 2026 in Washington Monument Grounds, Washington, DC (USA). Last competition: Marine Corps Marathon on Oct 25, 2026, 2:30:43.