On 19 September 2025, Jasmine Jones (United States) ran their 400 metres hurdles in 52.08 seconds at Tokyo (World Championships). It's also their new personal best.
On 4h/world, this time earns Jasmine a Top 3% World ranking.
| 18.57 |
| 8.33 |
14 L |
L |
| H5 | 4.32(+0.12) | 22.89 | 8.10 | 14 R | R |
| H6 | 4.48(+0.16) | 27.37 | 7.81 | 14 L | L |
| H7 | 4.48(0.00) | 31.85 | 7.81 | 14 R | R |
| H8 | 4.68(+0.20) | 36.53 | 7.48 | 15 R | R |
| H9 | 4.80(+0.12) | 41.33 | 7.29 | 15 R | R |
| H10 | 4.96(+0.16) | 46.29 | 7.06 | 15 R | R |
| Finish | 5.79 | 52.08 | 6.91 | — — | — |
Avg. interval
4.45s
Std. deviation
0.30
Deceleration
Stride pattern
New personal best!
Very consistent intervals (σ=0.3s).
Fastest interval: 4.04s (H2–H3).
Excellent fatigue resistance: only 8.9% speed loss between the first and second halves (8.08 → 7.37 m/s).
Steady stride pattern.
Lead leg alternation: 3× Left, 7× Right.
All-time fastest sectors
Max speed
8.66m/s
Avg speed
7.68m/s
Std. deviation
0.30s