Isabelle Seijlhouwer

United StatesUnited StatesActive
Events
800 Metres Short Track

Isabelle Seijlhouwer is a United States sprinter. She competes primarily in the 400m, 800m and 1500m.

Her personal bests include 61.42 in the 400m, 2:15.41 in the 800m, 4:32.92 in the 1500m, 5:18.34 in the Mile and 10:05.10 in the 3000m. She is currently active on the international athletics circuit, representing United States.

Personal best · 800 Metres Short Track2:21.24
2026 season best2:21.24Jan 29, 2026 · McNeese State Indoor Recreation Complex, Lake Charles, LA
2026 season best
Last competitionCompetitie 2e Divisie Poule 3 R2May 31, 2026 · 61.42
Competitie 2e Divisie Poule 3 R2

As of Nov 14, 2026: 800 Metres Short Track 2:21.24, 2026 season best 2:21.24 (Jan 29, 2026, McNeese State Indoor Recreation Complex, Lake Charles, LA (USA)) · Last competition: Competitie 2e Divisie Poule 3 R2, May 31, 2026, 61.42

Personal bests

WA points calculator →
DisciplineResultAll-time
400mHoofddorp 2026United States 400 m all-time list61.42790 pts–
800mTX 2025United States 800 m all-time list2:15.41903 pts–
1500mLA 2026United States 1500 m all-time list4:32.92956 pts–
MileIndoorLA 20255:18.34824 pts–
3000mIndoorAL 202610:05.10917 pts–
5000mTX 2026United States 5000 m all-time list17:37.24879 pts–

Progression

SeasonDisciplineResultWindDateCompetitions
2026400m 61.42–May 31, 2026Competitie 2e Divisie Poule 3 R2
2026800m 2:16.24–May 2, 2026Texas A&M Alumni Muster, Cushing Stadium, College Station, TX
2026800m-short-track Indoor2:16.34–Feb 25, 2026Southland Conference Indoor Championships, CrossPlex Athletic Facility, Birmingham, AL (i)
2026800m-short-track 2:21.24–Jan 29, 2026McNeese Indoor II & Multi
20261500m 4:32.92–Apr 25, 2026LSU Alumni Gold
20263000m-short-track Indoor10:05.10–Feb 26, 2026Southland Conference Indoor Championships, CrossPlex Athletic Facility, Birmingham, AL (i)
20263000m Indoor10:05.10–Feb 26, 2026Southland Conference Indoor Championships, CrossPlex Athletic Facility, Birmingham, AL (i)
20265000m 17:37.24–May 16, 2026Southland Conference Outdoor Track Championships
FAQ

Frequently asked questions

Isabelle Seijlhouwer's 800 Metres Short Track personal best is 2:21.24, set on Jan 29, 2026 in McNeese State Indoor Recreation Complex, Lake Charles, LA (USA).

Isabelle Seijlhouwer competes in the 800 Metres Short Track.

2026 season best: 2:21.24, set on Jan 29, 2026 in McNeese State Indoor Recreation Complex, Lake Charles, LA (USA). Last competition: Competitie 2e Divisie Poule 3 R2 on May 31, 2026, 61.42.