Personal Records
| Event | Mark | State | National | Date |
|---|---|---|---|---|
| 400m | 58.22 | #12,063 | Jan 21, 2026 | |
| 2 Mile | 15:35.41 | — | Oct 10, 2023 | |
| 5K | 21:24.65 | — | Sep 16, 2025 | |
| 110mH | 20.43 | — | May 2, 2026 | |
| 400mH | 1:07.97 | #5,961 | Apr 26, 2025 |
Results
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See all 23 of Thomas Sieczkowski's results
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Join MileSplit PRO Already a PRO member? Log in2026 - Outdoor
110 Meter Hurdles
400 Meter Hurdles
2026 - Indoor
400 Meter Dash
2025 - Cc
5000 Meter Run
2025 - Outdoor
400 Meter Hurdles
2024 - Cc
5000 Meter Run
2023 - Cc
3200 Meter Run
2 Mile Run
5000 Meter Run