Sean O'Brien

United StatesUnited StatesActive
Events
100 m · 60 m

Sean O'Brien is a United States sprinter. She competes primarily in the 100m, 200m and 4x100m.

Her personal bests include 11.94 in the 100m, 24.72 in the 200m, 46.09 in the 4x100m, 9.18 in the 60mH and 9.05 in the 60mH. She is currently active on the international athletics circuit, representing United States.

Personal best · 100 m11.94
2026 season best11.98Apr 17, 2026 · UVA Lanningan Field, Charlottesville, VA
2026 season best
Personal best · 60 m7.81
Last competitionIvy League Heptagonal Outdoor Track and Field ChampionshipsMay 17, 2026 · 46.79
Ivy League Heptagonal Outdoor Track and Field Championships

As of Nov 15, 2026: 100 m 11.94, 60 m 7.81, 2026 season best 11.98 (Apr 17, 2026, UVA Lanningan Field, Charlottesville, VA (USA)) · Last competition: Ivy League Heptagonal Outdoor Track and Field Championships, May 17, 2026, 46.79

Personal bests

WA points calculator →
DisciplineResultAll-time2026
100mPA 2024United States 100 m all-time list11.941,003 pts––
200mNJ 2026United States 200 m all-time list24.72968 pts––
4x100mCT 2025United States 4 × 100 m all-time list46.09––
60mHNY 20269.18907 pts––
60mHIndoorPA 20259.05934 pts––
DistanceMeIndoorNY 202611:51.20–#795

Progression

SeasonDisciplineResultWindDateCompetitions
202660m Indoor7.61–Feb 28, 2026Ivy League Heptagonal Track and Field Championships
202660m 7.81–Jan 23, 2026Dr. Sander Scorcher
202660mH Indoor9.08–Jan 17, 2026–
202660mH 9.18–Jan 30, 2026Mets Indoor Championships
2026100m 11.98+1.0Apr 17, 2026Virginia Challenge, UVA Lanningan Field, Charlottesville, VA
2026200m 24.72+1.6May 16, 2026Ivy League Heptagonal Outdoor Track and Field Championships
2026200m-short-track Indoor25.24–Feb 28, 2026Ivy League Heptagonal Track and Field Championships
2026200m-short-track 25.52–Jan 24, 2026Dr. Sander Scorcher
FAQ

Frequently asked questions

Sean O'Brien's 100 m personal best is 11.94, set on Jun 14, 2024 in Franklin Field, Philadelphia, PA (USA).

Sean O'Brien competes in the 100 m and 60 m.

2026 season best: 11.98, set on Apr 17, 2026 in UVA Lanningan Field, Charlottesville, VA (USA). Last competition: Ivy League Heptagonal Outdoor Track and Field Championships on May 17, 2026, 46.79.