Personal Records
| Event | Mark | State | National | Date |
|---|---|---|---|---|
| 400m | 59.39 | — | Jun 12, 2026 | |
| 800m | 2:19.94 | — | Jun 12, 2026 | |
| 1500m | 5:51.77 | — | Jun 16, 2023 | |
| 200mH | 33.43 | — | Jun 12, 2026 |
Results
See all 9 of John Duffy’s results
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2026 - Outdoor
400 Meter Dash
800 Meter Run
200 Meter Hurdles
2025 - Outdoor
400 Meter Dash
800 Meter Run
2023 - Outdoor
800 Meter Run
1500 Meter Run