On 5 July 2026, Sami Elhafi (France) ran their 400 metres hurdles in 57.24 seconds at Montgeron (Regional Championships U20). It's also their new personal best.
| 20.18 |
| 7.66 |
15 L |
L |
| H5 | 4.80(+0.23) | 24.98 | 7.29 | 16 R | R |
| H6 | 5.07(+0.27) | 30.05 | 6.90 | 16 L | L |
| H7 | 5.12(+0.05) | 35.17 | 6.84 | 17 L | L |
| H8 | 5.32(+0.20) | 40.49 | 6.58 | 17 L | L |
| H9 | 5.33(+0.01) | 45.82 | 6.57 | 17 L | L |
| H10 | 5.43(+0.10) | 51.25 | 6.45 | 17 L | L |
| Finish | 5.99 | 57.24 | 6.68 | — — | — |
Avg. interval
4.94s
Std. deviation
0.39
Deceleration
Stride pattern
New personal best!
Fastest interval: 4.38s (H2–H3).
Excellent fatigue resistance: only 10% speed loss between the first and second halves (7.41 → 6.66 m/s).
Steady stride pattern.
Lead leg alternation: 9× Left, 1× Right.