| Sectors | Splits | Cumulative | Strides | Lead leg |
|---|---|---|---|---|
| Start - H1 | 5.76 | 5.76 | 24 | G |
| H2 | 3.87 | 9.63 | 14 | D |
| H3 | 3.96(+0.09) | 13.59 | 14 | G |
| H4 | 4.12(+0.16) | 17.71 | 14 | D |
| H5 | 4.16(+0.04) | 21.87 | 14 | G |
| H6 | 4.14(-0.02) | 26.01 | 15 | G |
| H7 | 4.16(+0.02) | 30.17 | 15 | G |
| H8 | 4.26(+0.10) | 34.43 | 15 | G |
| H9 | 4.36(+0.10) | 38.79 | 15 | G |
| H10 | 4.43(+0.07) | 43.22 | 15 | G |
| Finish | 5.01 | 48.23 | — | — |
Total time
Avg. interval
4.16s
Std. deviation
0.17
Deceleration
Stride pattern
Very consistent intervals (σ=0.17s).
Fastest interval: 3.87s (H2–H3).
Very low deceleration (3.6%: 8.46 → 8.16 m/s), a likely sign of an over-managed first half.
Steady stride pattern.
Lead leg alternation: 8× Left, 2× Right.
Stride count and lead leg, hurdle by hurdle
Percentile position, sector by sector
Faster than 43% of 400m hurdles Elite-level.
Actual percentile: 43
n = 155 races · 75 athletes
Position within the pacing-consistency distribution (a higher value isn't necessarily a better race).
Position within the speed-loss distribution between the two race halves (a low value isn't always better pacing).
Hurdle fault rate, compared to the database.
On 18 August 2009, Bershawn Jackson (United States) ran their 400 metres hurdles in 48.23 seconds at Berlin (World Championships).
The closest performance recorded on 4h/world belongs to Abderrahman Samba (48.24s at Bruxelles), with 0.01 seconds away.
Data source: Scientific Research Project Biomechanical Analyses at the Berlin 2009 World Championniships by Helmar Hommel