| Sectors | Splits | Cumulative | Strides | Lead leg |
|---|---|---|---|---|
| Start - H1 | 5.96 | 5.96 | 21 | D |
| H2 | 3.69 | 9.65 | 13 | D |
| H3 | 3.88(+0.19) | 13.53 | 13 | D |
| H4 | 3.82(-0.06) | 17.35 | 13 | D |
| H5 | 3.86(+0.04) | 21.21 | 13 | D |
| H6 | 4.06(+0.20) | 25.27 | 14 | G |
| H7 | 4.12(+0.06) | 29.39 | 14 | D |
| H8 | 4.33(+0.21) | 33.72 | 14 | G |
| H9 | 4.36(+0.03) | 38.08 | 14 | D |
| H10 | 4.56(+0.20) | 42.64 | 15 | D |
| Finish | 5.18 | 47.82 | — | — |
Total time
Avg. interval
4.08s
Std. deviation
0.28
Deceleration
Stride pattern
New personal best!
New national record!
Very consistent intervals (σ=0.28s).
Fastest interval: 3.69s (H2–H3).
Excellent fatigue resistance: only 7.4% speed loss between the first and second halves (8.72 → 8.08 m/s).
Steady stride pattern.
Lead leg alternation: 2× Left, 8× Right.
Stride count and lead leg, hurdle by hurdle
Percentile position, sector by sector
Faster than 65% of 400m hurdles Elite-level.
Actual percentile: 65
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 2 September 1972, John Akii-Bua (Uganda) ran their 400 metres hurdles in 47.82 seconds at Munich (Olympic Games).
On 4h/world, this time earns John a Top 19% World ranking.
This performance is the uganda record.