Madison Mosby

United StatesUnited StatesActive
Events
400 m

Madison Mosby is a United States sprinter. She competes primarily in the 100m, 400m and 4x100m.

Her personal bests include 11.57 in the 100m, 52.58 in the 400m, 46.30 in the 4x100m, 3:27.80 in the 4x400m and 3:28.65 in the 4x400Metre. She is currently active on the international athletics circuit, representing United States.

Personal best · 400 m52.58
2026 season best52.58May 3, 2026 · USC Allyson Felix at Loker Track Stadium, Los Angeles, CA
2026 season best
Last competitionNCAA Division I West First RoundsMay 30, 2026 · 3:27.80
NCAA Division I West First Rounds

As of Nov 13, 2026: 400 m 52.58, 2026 season best 52.58 (May 3, 2026, USC Allyson Felix at Loker Track Stadium, Los Angeles, CA (USA)) · Last competition: NCAA Division I West First Rounds, May 30, 2026, 3:27.80

Personal bests

WA points calculator →
DisciplineResultAll-time2026
100mTX 2024United States 100 m all-time list11.57*1,079 pts––
400mCA 2026United States 400 m all-time list52.581,104 pts–#298
4x100mTX 2024United States 4 × 100 m all-time list46.30––
4x400mAR 2026United States 4 × 400 m all-time list3:27.80–#124
4x400MetreIndoorNM 20263:28.65–#75
400m-short-trackIndoorNM 202654.761,056 pts–#585

* Wind-assisted (> 2.0 m/s)

Progression

SeasonDisciplineResultWindDateCompetitions
2026400m 52.58–May 3, 2026USC-UCLA Dual Meet
2026400m-short-track Indoor54.76–Feb 13, 2026Don Kirby Elite Invitational
20264x400m 3:27.80–May 30, 2026NCAA Division I West First Rounds
20264x400Metre Indoor3:28.65–Feb 7, 2026New Mexico Collegiate Classic
2025400m 53.94–Apr 19, 2025Mt. SAC Relays, Hilmer Lodge Stadium, Walnut, CA - Invitational Events
2024100m 11.57+5.0Mar 29, 2024Clyde Littlefield Texas Relays presented by Truist, Mike A. Myers Stadium, Austin, TX - Invitational Events
20244x100m 46.30–Mar 30, 2024Clyde Littlefield Texas Relays presented by Truist, Mike A. Myers Stadium, Austin, TX - Invitational Events
20244x400m 3:45.57–Mar 30, 2024Clyde Littlefield Texas Relays presented by Truist, Mike A. Myers Stadium, Austin, TX - Invitational Events
FAQ

Frequently asked questions

Madison Mosby's 400 m personal best is 52.58, set on May 3, 2026 in USC Allyson Felix at Loker Track Stadium, Los Angeles, CA (USA).

Madison Mosby competes in the 400 m.

2026 season best: 52.58, set on May 3, 2026 in USC Allyson Felix at Loker Track Stadium, Los Angeles, CA (USA). Last competition: NCAA Division I West First Rounds on May 30, 2026, 3:27.80.