Lia Cooper

United StatesUnited StatesActive
Events
400 m

Lia Cooper is a United States sprinter. She competes primarily in the 100m, 200m and 400m.

Her personal bests include 12.71 in the 100m, 25.45 in the 200m, 58.36 in the 400m, 3:47.89 in the 4x400m and 3:55.94 in the 4x400Metre. She is currently active on the international athletics circuit, representing United States.

Personal best · 400 m58.36
2026 season best58.36May 9, 2026 · Cougar Athletic Stadium, Azusa, CA
2026 season best
Last competitionFranson Last ChanceMay 9, 2026 · 58.36
Franson Last Chance

As of Nov 14, 2026: 400 m 58.36, 2026 season best 58.36 (May 9, 2026, Cougar Athletic Stadium, Azusa, CA (USA)) · Last competition: Franson Last Chance, May 9, 2026, 58.36

Personal bests

WA points calculator →
DisciplineResultAll-time
100mCA 2026United States 100 m all-time list12.71856 pts–
200mCA 2026United States 200 m all-time list25.45901 pts–
400mCA 2026United States 400 m all-time list58.36893 pts–
4x400mCA 2026United States 4 × 400 m all-time list3:47.89–
4x400MetreIndoorNV 20263:55.94–
400m-short-trackIndoorNV 202659.36893 pts–

Progression

SeasonDisciplineResultWindDateCompetitions
2026100m 12.71+1.6May 2, 2026Steve Scott Invite
2026200m 25.45+1.7May 9, 2026Franson Last Chance
2026200m-short-track Indoor26.02–Feb 14, 2026Battle Born Classic
2026200m-short-track 26.36–Jan 30, 2026New Mexico Team Open
2026400m 58.36–May 9, 2026Franson Last Chance
2026400m-short-track Indoor59.36–Feb 14, 2026Battle Born Classic
2026400m-short-track 59.95–Jan 30, 2026New Mexico Team Open
20264x400m 3:47.89–May 9, 2026Franson Last Chance
FAQ

Frequently asked questions

Lia Cooper's 400 m personal best is 58.36, set on May 9, 2026 in Cougar Athletic Stadium, Azusa, CA (USA).

Lia Cooper competes in the 400 m.

2026 season best: 58.36, set on May 9, 2026 in Cougar Athletic Stadium, Azusa, CA (USA). Last competition: Franson Last Chance on May 9, 2026, 58.36.