William Thu

United StatesUnited StatesActive
Events
Mile Short Track · 800 Metres Short Track

William Thu is a United States middle-distance runner. He competes primarily in the 800m, 1500m and Mile.

His personal bests include 1:54.90 in the 800m, 3:53.81 in the 1500m, 4:20.54 in the Mile, 4:09.31 in the Mile and 8:21.93 in the 3000m. He is currently active on the international athletics circuit, representing United States.

Personal best · Mile Short Track4:09.31
2026 season best4:09.31Feb 22, 2026 · The Track at New Balance, Boston, MA (USA) (i)
2026 season best
Personal best · 800 Metres Short Track1:54.90
Last competitionCoastal Athletic Association Outdoor Track and Field ChampionshipMay 16, 2026 · 15:04.16
Coastal Athletic Association Outdoor Track and Field Championship

As of Nov 15, 2026: Mile Short Track 4:09.31, 800 Metres Short Track 1:54.90, 2026 season best 4:09.31 (Feb 22, 2026, The Track at New Balance, Boston, MA (USA) (i)) · Last competition: Coastal Athletic Association Outdoor Track and Field Championship, May 16, 2026, 15:04.16

Personal bests

WA points calculator →
DisciplineResultAll-time2026
800mIndoorNY 20261:54.90942 pts––
1500mNJ 2026United States 1500 m all-time list3:53.81929 pts––
MileRI 2026United States Mile all-time list4:20.54837 pts––
MileIndoorMA 20264:09.311,013 pts––
3000mIndoorMA 20268:21.93951 pts––
5000mCA 2026United States 5000 m all-time list14:31.96896 pts––

Progression

SeasonDisciplineResultWindDateCompetitions
2026800m-short-track 1:54.90–Jan 30, 2026Mets Indoor Championships
2026800m Indoor1:54.90–Jan 30, 2026Mets Indoor Championships
2026800m-short-track Indoor1:54.90–Jan 30, 2026Mets Indoor Championships
20261500m 3:53.81–May 2, 2026Larry Ellis Invitational
2026mile-short-track Indoor4:09.31–Feb 22, 2026Coastal Athletic Association Indoor Track & Field Championship, The Track at New Balance, Boston, MA (i)
2026Mile Indoor4:20.54–Apr 10, 2026Friar Invitational
2026Mile 4:20.54–Apr 10, 2026Friar Invitational
20263000m-short-track Indoor8:21.93–Feb 22, 2026Coastal Athletic Association Indoor Track & Field Championship, The Track at New Balance, Boston, MA (i)
FAQ

Frequently asked questions

William Thu's Mile Short Track personal best is 4:09.31, set on Feb 22, 2026 in The Track at New Balance, Boston, MA (USA) (i).

William Thu competes in the Mile Short Track and 800 Metres Short Track.

2026 season best: 4:09.31, set on Feb 22, 2026 in The Track at New Balance, Boston, MA (USA) (i). Last competition: Coastal Athletic Association Outdoor Track and Field Championship on May 16, 2026, 15:04.16.