On 9 July 2026, Francesco Alpigiano (Italy) ran their 400 metres hurdles in 52.47 seconds at Caorle (Italy Championships U20).
R |
| H3 | 4.12(+0.10) | 14.64 | 8.50 | 14 L | L |
| H4 | 4.12(0.00) | 18.76 | 8.50 | 14 R | R |
| H5 | 4.22(+0.10) | 22.98 | 8.29 | 14 L | L |
| H6 | 4.32(+0.10) | 27.30 | 8.10 | 14 R | R |
| H7 | 4.60(+0.28) | 31.90 | 7.61 | 14 L | L |
| H8 | 4.76(+0.16) | 36.66 | 7.35 | 15 L | L |
| H9 | 4.96(+0.20) | 41.62 | 7.06 | 15 L | L |
| H10 | 5.02(+0.06) | 46.64 | 6.97 | 15 L | L |
| Finish | 5.83 | 52.47 | 6.86 | — — | — |
Avg. interval
4.46s
Std. deviation
0.36
Deceleration
Stride pattern
Fastest interval: 4.02s (H2–H3).
Excellent fatigue resistance: only 9.4% speed loss between the first and second halves (8.05 → 7.29 m/s).
Stutter on H2, H4.
Lead leg alternation: 7× Left, 3× Right.