Progress against the field
Between Marseille 2024 and Rome 2025, Dax Blackburn lost 6:38 to the field.
The clock says 3:55 slower, but the races themselves got 2:43 quicker for everyone.
How this is worked out ⓘ
A finish time moves for two reasons: the athlete, and the race — its course, its floor, its day. For each pair of races in a row in one category, we take everyone who raced both and use the middle of how much they moved (the median) as "the race". Whatever is left is the athlete. Doubles are compared only when the same two people raced both, and told as the pair's; relays are left out. A pair with fewer than 15 athletes in common is not shown. The summary above covers Individual Open · Men, the one raced most; every comparison is in the list below.
Every race
4 races · 4 events
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Rome26 Sep 2025Individual Open · Men1:20:55634/1367Beat 54%
↑ 293 days after Marseille 2024 6:38 worse than the field Why ↓Close ↑
3:55 slower on the clock in a race that was 2:43 faster for everyone: 6:38 lost to the field.
The fieldCompare these two →2:43 faster This athlete3:55 slower -
Marseille7 Dec 2024Individual Open · Men1:17:00 PB487/1477Beat 67%
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Birmingham25 Oct 2024Individual Open · Men1:21:57327/816Beat 60%
↑ 334 days after London 2023 1:26 better than the field Why ↓Close ↑
2:19 faster on the clock, and the race was 0:53 faster for everyone, so 1:26 of it was this athlete.
The fieldCompare these two →0:53 faster This athlete2:19 faster -
London26 Nov 2023Individual Open · Men1:24:16823/1865Beat 56%