On 18 August 2016, Ristananna Tracey (Jamaica) ran their 400 metres hurdles in 54.15 seconds at Rio de Janeiro (Olympic Games).
On 4h/world, this time earns Ristananna a Top 21% World ranking.
| 19.21 |
| 8.08 |
15 L |
L |
| H5 | 4.37(+0.04) | 23.58 | 8.01 | 15 L | L |
| H6 | 4.73(+0.36) | 28.31 | 7.40 | 16 R | R |
| H7 | 4.80(+0.07) | 33.11 | 7.29 | 16 L | L |
| H8 | 4.91(+0.11) | 38.02 | 7.13 | 16 R | R |
| H9 | 5.13(+0.22) | 43.15 | 6.82 | 16 L | L |
| H10 | 5.16(+0.03) | 48.31 | 6.78 | 16 R | R |
| Finish | 5.84 | 54.15 | 6.85 | — — | — |
Avg. interval
4.65s
Std. deviation
0.36
Deceleration
Stride pattern
Fastest interval: 4.19s (H2–H3).
Deceleration of 10.4% between the first half (7.85 m/s) and the second half (7.03 m/s).
Steady stride pattern.
Lead leg alternation: 7× Left, 3× Right.
All-time fastest sectors
All-time slowest sectors
Max speed
8.35m/s
Avg speed
7.39m/s
Std. deviation
0.36s