On 13 September 2026, Alison Dos Santos (Brazil) ran their 400 metres hurdles in 45.98 seconds at Budapest (Ultimate Championship).
On 4h/world, this time earns Alison a Top 1% World ranking.
| 16.75 |
| 9.21 |
12 L |
L |
| H5 | 3.80(0.00) | 20.55 | 9.21 | 12 R | R |
| H6 | 3.93(+0.13) | 24.48 | 8.91 | 12 L | L |
| H7 | 3.84(-0.09) | 28.32 | 9.11 | 13 L | L |
| H8 | 4.06(+0.22) | 32.38 | 8.62 | 13 L | L |
| H9 | 4.20(+0.14) | 36.58 | 8.33 | 13 L | L |
| H10 | 4.37(+0.17) | 40.95 | 8.01 | 13 L | L |
| Finish | 5.03 | 45.98 | 7.95 | — — | — |
Avg. interval
3.90s
Std. deviation
0.26
Deceleration
Stride pattern
Very consistent intervals (σ=0.26s).
Fastest interval: 3.5s (H3–H4).
Excellent fatigue resistance: only 6.1% speed loss between the first and second halves (9 → 8.45 m/s).
Steady stride pattern.
Lead leg alternation: 8× Left, 2× Right.
All-time fastest sectors
Max speed
10.00m/s
Avg speed
8.70m/s
Std. deviation
0.26s