Hailey Cossey

United StatesUnited StatesActive
Events
3000 m

Hailey Cossey is a United States middle-distance runner. She competes primarily in the 800m, 1500m and Mile.

Her personal bests include 2:15.64 in the 800m, 4:27.90 in the 1500m, 4:51.03 in the Mile, 4:55.32 in the Mile and 9:36.27 in the 3000m. She is currently active on the international athletics circuit, representing United States.

Personal best · 3000 m9:36.27
2026 season best9:36.27Jan 30, 2026 · Dempsey Indoor, Seattle, WA
2026 season best
Last competitionPayton Jordan InvitationalMay 1, 2026 · 4:27.90
Payton Jordan Invitational

As of Nov 14, 2026: 3000 m 9:36.27, 2026 season best 9:36.27 (Jan 30, 2026, Dempsey Indoor, Seattle, WA (USA)) · Last competition: Payton Jordan Invitational, May 1, 2026, 4:27.90

Personal bests

WA points calculator →
DisciplineResultAll-time2026
800mWA 2026United States 800 m all-time list2:15.64900 pts––
1500mCA 2026United States 1500 m all-time list4:27.90992 pts––
MileIndoorWA 20264:51.031,001 pts–#609
MileWA 2024United States Mile all-time list4:55.32944 pts–#393
3000mIndoorWA 20269:36.271,008 pts–#987
3000mWA 2026United States 3000 m all-time list9:36.27988 pts–#588

Progression

SeasonDisciplineResultWindDateCompetitions
2026800m 2:15.64–Apr 24, 2026Cougar Classic
20261500m 4:27.90–May 1, 2026Payton Jordan Invitational
2026Mile Indoor4:51.03–Feb 14, 2026Husky Classic, Dempsey Indoor, Seattle, WA (i)
2026Mile 4:56.27–Jan 30, 2026UW Invite/Mile City
20263000m 9:36.27–Jan 30, 2026UW Invite/Mile City
20263000m Indoor9:45.84–Feb 13, 2026Husky Classic, Dempsey Indoor, Seattle, WA (i)
20265000m 16:53.88–Apr 17, 2026Bryan Clay Invitational
2024Mile 4:55.32–Jun 12, 2024Brooks PR Invitational, Renton Memorial Stadium, Renton, WA - High School Events
FAQ

Frequently asked questions

Hailey Cossey's 3000 m personal best is 9:36.27, set on Jan 30, 2026 in Dempsey Indoor, Seattle, WA (USA).

Hailey Cossey competes in the 3000 m.

2026 season best: 9:36.27, set on Jan 30, 2026 in Dempsey Indoor, Seattle, WA (USA). Last competition: Payton Jordan Invitational on May 1, 2026, 4:27.90.