On 5 September 2026, Alison Dos Santos (Brazil) ran their 400 metres hurdles in 46.70 seconds at Bruxelles (Diamond League).
On 4h/world, this time earns Alison a Top 2% World ranking.
| 16.66 |
| 9.89 |
12 L |
L |
| H5 | 3.80(+0.26) | 20.46 | 9.21 | 12 R | R |
| H6 | 3.87(+0.07) | 24.33 | 9.04 | 12 L | L |
| H7 | 4.07(+0.20) | 28.40 | 8.60 | 13 L | L |
| H8 | 4.27(+0.20) | 32.67 | 8.20 | 13 L | L |
| H9 | 4.40(+0.13) | 37.07 | 7.95 | 13 L | L |
| H10 | 4.50(+0.10) | 41.57 | 7.78 | 13 L | L |
| Finish | 5.13 | 46.70 | 7.80 | — — | — |
Avg. interval
3.99s
Std. deviation
0.32
Deceleration
Stride pattern
Fastest interval: 3.54s (H4–H5).
Excellent fatigue resistance: only 9.4% speed loss between the first and second halves (9.04 → 8.19 m/s).
Steady stride pattern.
Lead leg alternation: 8× Left, 2× Right.
Max speed
9.89m/s
Avg speed
8.57m/s
Std. deviation
0.32s