On 18 August 2025, Benjamin Rai (United States) ran their 400 metres hurdles in 46.51 seconds at Tokyo (World Championships).
On 4h/world, this time earns Benjamin a Top 2% World ranking.
| 16.47 |
| 9.75 |
12 R |
R |
| H5 | 3.83(+0.24) | 20.30 | 9.14 | 13 R | R |
| H6 | 3.87(+0.04) | 24.17 | 9.04 | 13 R | R |
| H7 | 3.87(0.00) | 28.04 | 9.04 | 13 R | R |
| H8 | 4.03(+0.16) | 32.07 | 8.68 | 13 R | R |
| H9 | 4.22(+0.19) | 36.29 | 8.29 | 13 R | R |
| H10 | 4.67(+0.45) | 40.96 | 7.49 | 14 L | L |
| Finish | 5.55 | 46.51 | 7.21 | — — | — |
Avg. interval
3.90s
Std. deviation
0.35
Deceleration
Stride pattern
Fastest interval: 3.51s (H2–H3).
Excellent fatigue resistance: only 10% speed loss between the first and second halves (9.11 → 8.2 m/s).
Steady stride pattern.
Hurdle fault on H10.
Lead leg alternation: 2× Left, 8× Right.