On 4 September 2026, Gianna Woodruff (Panama) ran their 400 metres hurdles in 53.56 seconds at Bruxelles (Diamond League).
On 4h/world, this time earns Gianna a Top 15% World ranking.
| 18.97 |
| 8.01 |
15 L |
L |
| H5 | 4.37(0.00) | 23.34 | 8.01 | 15 L | L |
| H6 | 4.47(+0.10) | 27.81 | 7.83 | 15 L | L |
| H7 | 4.63(+0.16) | 32.44 | 7.56 | 15 L | L |
| H8 | 5.00(+0.37) | 37.44 | 7.00 | 15 L | L |
| H9 | 5.13(+0.13) | 42.57 | 6.82 | 16 R | R |
| H10 | 5.13(0.00) | 47.70 | 6.82 | 16 L | L |
| Finish | 5.86 | 53.56 | 6.83 | — — | — |
Avg. interval
4.57s
Std. deviation
0.41
Deceleration
Stride pattern
Fastest interval: 3.97s (H2–H3).
Deceleration of 10.2% between the first half (7.93 m/s) and the second half (7.11 m/s).
Steady stride pattern.
Lead leg alternation: 9× Left, 1× Right.