On 18 August 2009, Javier Culson (Puerto Rico) ran their 400 metres hurdles in 48.09 seconds at Berlin (World Championships).
On 4h/world, this time earns Javier a Top 22% World ranking.
| 17.37 |
| 8.93 |
13 L |
L |
| H5 | 4.12(+0.20) | 21.49 | 8.50 | 13 L | L |
| H6 | 4.11(-0.01) | 25.60 | 8.52 | 13 L | L |
| H7 | 4.27(+0.16) | 29.87 | 8.20 | 13 L | L |
| H8 | 4.30(+0.03) | 34.17 | 8.14 | 13 L | L |
| H9 | 4.39(+0.09) | 38.56 | 7.97 | 14 R | R |
| H10 | 4.47(+0.08) | 43.03 | 7.83 | 14 L | L |
| Finish | 5.06 | 48.09 | 7.91 | — — | — |
Avg. interval
4.12s
Std. deviation
0.25
Deceleration
Stride pattern
Very consistent intervals (σ=0.25s).
Fastest interval: 3.7s (H2–H3).
Excellent fatigue resistance: only 6.1% speed loss between the first and second halves (8.61 → 8.08 m/s).
Steady stride pattern.
Lead leg alternation: 9× Left, 1× Right.
All-time fastest sectors
All-time slowest sectors
Max speed
9.46m/s
Avg speed
8.32m/s
Std. deviation
0.25s