On 20 June 2026, Petros Papagiannis (Greece) ran their 400 metres hurdles in 51.17 seconds at Volos (Regional Championships).
| 18.47 |
| 8.33 |
13 L |
L |
| H5 | 4.30(+0.10) | 22.77 | 8.14 | 13 L | L |
| H6 | 4.47(+0.17) | 27.24 | 7.83 | 13 L | L |
| H7 | 4.53(+0.06) | 31.77 | 7.73 | 13 L | L |
| H8 | 4.67(+0.14) | 36.44 | 7.49 | 14 R | R |
| H9 | 4.77(+0.10) | 41.21 | 7.34 | 14 L | L |
| H10 | 4.77(0.00) | 45.98 | 7.34 | 14 R | R |
| Finish | 5.19 | 51.17 | 7.71 | — — | — |
Avg. interval
4.42s
Std. deviation
0.27
Deceleration
Stride pattern
Very consistent intervals (σ=0.27s).
Fastest interval: 3.97s (H2–H3).
Excellent fatigue resistance: only 6.8% speed loss between the first and second halves (8.12 → 7.57 m/s).
Steady stride pattern.
Lead leg alternation: 8× Left, 2× Right.