On 4 August 2021, Dalilah Muhammad (United States) ran their 400 metres hurdles in 51.58 seconds at Tokyo (Olympic Games). It's also their new personal best.
On 4h/world, this time earns Dalilah a Top 1% World ranking.
| 18.14 |
| 8.41 |
15 R |
R |
| H5 | 4.36(+0.20) | 22.50 | 8.03 | 15 R | R |
| H6 | 4.40(+0.04) | 26.90 | 7.95 | 15 R | R |
| H7 | 4.52(+0.12) | 31.42 | 7.74 | 15 R | R |
| H8 | 4.72(+0.20) | 36.14 | 7.42 | 15 R | R |
| H9 | 4.84(+0.12) | 40.98 | 7.23 | 16 L | L |
| H10 | 4.92(+0.08) | 45.90 | 7.11 | 16 R | R |
| Finish | 5.68 | 51.58 | 7.04 | — — | — |
Avg. interval
4.42s
Std. deviation
0.34
Deceleration
Stride pattern
New personal best!
Fastest interval: 3.88s (H2–H3).
Deceleration of 10.1% between the first half (8.22 m/s) and the second half (7.39 m/s).
Steady stride pattern.
Lead leg alternation: 2× Left, 8× Right.
All-time fastest sectors
Max speed
9.02m/s
Avg speed
7.75m/s
Std. deviation
0.34s