Kaitlin O'Sullivan

Born
Jan 7, 1989 (37 years old)
Events
800 Metres Short Track · Mile Short Track

Kaitlin O'Sullivan is a United States middle-distance runner, born on January 7, 1989. She competes primarily in the 800m, 800m and 1500m.

Her personal bests include 2:11.95 in the 800m, 2:12.99 in the 800m, 4:31.50 in the 1500m, 4:30.21 in the 1500m and 4:48.57 in the Mile. She is currently active on the international athletics circuit, representing United States.

Personal best · 800 Metres Short Track2:13.37
2025 season best2:54:52Nov 23, 2025 · Philadelphia, PA
Personal best · Mile Short Track4:51.57
Last competitionAACR Philadelphia MarathonNov 23, 2025 · 2:54:52

As of Nov 8, 2026: 800 Metres Short Track 2:13.37, Mile Short Track 4:51.57, 2025 season best 2:54:52 (Nov 23, 2025, Philadelphia, PA (USA)) · Last competition: AACR Philadelphia Marathon, Nov 23, 2025, 2:54:52 · 37 years old

DisciplineResultAll-time
800mIndoorIN 20072:11.95997 pts–
1500mIndoorMA 20094:30.21994 pts–
MilePA 2009United States Mile all-time list4:48.57989 pts–
3000mIndoorNY 20089:59.13935 pts–

Progression

Compare me
SeasonDisciplineResultWindDateCompetitions
2025Marathon 2:54:52–Nov 23, 2025AACR Philadelphia Marathon
2015Marathon 2:45:29–Nov 22, 2015Philadelphia, PA (USA)
2013Semi 1:23:30–Feb 24, 2013New York, NY (USA)
20113000mSt 11:42.32–Apr 9, 2011Fairfax, VA (USA)
20103000m-short-track 10:34.98–Dec 3, 2010–
20103000m-short-track Indoor10:34.98–Dec 3, 2010Villanova, PA (USA) (i)
20103000m 10:45.15–Apr 10, 2010–
20103000m Indoor10:45.15–Apr 10, 2010Villanova, PA (USA) (i)
Compare me with Kaitlin O'Sullivan
FAQ

Frequently asked questions

Kaitlin O'Sullivan's 800 Metres Short Track personal best is 2:13.37, set on Feb 23, 2007.

Kaitlin O'Sullivan competes in the 800 Metres Short Track and Mile Short Track.

2025 season best: 2:54:52, set on Nov 23, 2025 in Philadelphia, PA (USA). Last competition: AACR Philadelphia Marathon on Nov 23, 2025, 2:54:52.