Collin Sieffert

Collin Sieffert

Events
400 m hurdles

Collin Sieffert is a United States sprinter. He competes primarily in the 200m, 400m and 400m.

His personal bests include 23.28 in the 200m, 48.99 in the 400m, 48.99 in the 400m, 50.53 in the 400mH and 3:07.37 in the 4x400m. He is currently active on the international athletics circuit, representing United States.

Personal best · 400 m hurdles50.53
2023 season best50.53Jun 7, 2023 · Mike A. Myers Stadium, Austin, TX
Last competitionNCAA Division I Outdoor Championships, Mike A. Myers Stadium, Austin, TXJun 7, 2023 · 50.53

As of Nov 13, 2026: 400 m hurdles 50.53, 2023 season best 50.53 (Jun 7, 2023, Mike A. Myers Stadium, Austin, TX (USA)) · Last competition: NCAA Division I Outdoor Championships, Mike A. Myers Stadium, Austin, TX, Jun 7, 2023, 50.53

DisciplineResultAll-time
200mIndoorIA 202123.28815 pts–
400mIndoorOH 202148.99980 pts–
60mHIndoorNE 20218.61857 pts–

Progression

SeasonDisciplineResultWindDateCompetitions
2023400mH 50.53–Jun 7, 2023NCAA Division I Outdoor Championships, Mike A. Myers Stadium, Austin, TX
2022400m-short-track Indoor49.01–Feb 11, 2022Randal Tyson Indoor Center, Fayetteville, AR (USA) (i)
2022400m-short-track 49.01–Feb 11, 2022–
2022400m Indoor49.01–Feb 11, 2022Randal Tyson Indoor Center, Fayetteville, AR (USA) (i)
2022400mH 50.81–May 25, 2022Billy Hayes T& F Complex, Bloomington, IN (USA)
2022600m Indoor1:20.86–Jan 14, 2022Clemson Indoor Track & Field Complex, Clemson, SC (USA) (i)
2022600m-short-track Indoor1:20.86–Jan 14, 2022Clemson Indoor Track & Field Complex, Clemson, SC (USA) (i)
2022600m-short-track 1:20.86–Jan 14, 2022–
FAQ

Frequently asked questions

Collin Sieffert's 400 m hurdles personal best is 50.53, set on Jun 7, 2023 in Mike A. Myers Stadium, Austin, TX (USA).

Collin Sieffert competes in the 400 m hurdles.

2023 season best: 50.53, set on Jun 7, 2023 in Mike A. Myers Stadium, Austin, TX (USA). Last competition: NCAA Division I Outdoor Championships, Mike A. Myers Stadium, Austin, TX on Jun 7, 2023, 50.53.