Progress against the field
Between Rotterdam 2023 and Rotterdam 2024, Sjaco Van Kalkeren pulled 4:46 ahead of the field.
Over the same races everyone got 5:07 quicker, so 9:53 faster on the clock looks better than it was.
The biggest step was Amsterdam 2023 → Rotterdam 2024: 3:51 on the field in 154 days.
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.
Every race
3 races · 3 events
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Rotterdam6 Apr 2024Individual Open · Men1:29:30 PB604/1380Beat 56%
↑ 154 days after Amsterdam 2023 3:51 better than the field Why ↓Close ↑
6:21 faster on the clock, and the race was 2:30 faster for everyone, so 3:51 of it was this athlete.
The fieldCompare these two →2:30 faster This athlete6:21 faster -
Amsterdam4 Nov 2023Individual Open · Men1:35:51729/1079Beat 32%
↑ 168 days after Rotterdam 2023 0:55 better than the field Why ↓Close ↑
3:32 faster on the clock, and the race was 2:37 faster for everyone, so 0:55 of it was this athlete.
The fieldCompare these two →2:37 faster This athlete3:32 faster -
Rotterdam20 May 2023Individual Open · Men1:39:23432/575Beat 25%