On 17 August 2021, Benjamin Rai (United States) ran their 400 metres hurdles in 46.17 seconds at Tokyo (Olympic Games).
On 4h/world, this time earns Benjamin a Top 1% World ranking.
This performance is the records:
| 16.58 |
| 9.62 |
13 R |
R |
| H5 | 3.76(+0.12) | 20.34 | 9.31 | 13 R | R |
| H6 | 3.88(+0.12) | 24.22 | 9.02 | 13 R | R |
| H7 | 4.00(+0.12) | 28.22 | 8.75 | 13 R | R |
| H8 | 4.08(+0.08) | 32.30 | 8.58 | 13 R | R |
| H9 | 4.20(+0.12) | 36.50 | 8.33 | 13 R | R |
| H10 | 4.36(+0.16) | 40.86 | 8.03 | 13 R | R |
| Finish | 5.31 | 46.17 | 7.53 | — — | — |
Avg. interval
3.91s
Std. deviation
0.26
Deceleration
Stride pattern
New personal best!
New national record!
New area record!
Very consistent intervals (σ=0.26s).
Fastest interval: 3.56s (H2–H3).
Excellent fatigue resistance: only 8.5% speed loss between the first and second halves (9.1 → 8.32 m/s).
Steady stride pattern.