Progress against the field
Between Rotterdam 2024 and Amsterdam 2024, Perry Van Duin pulled 11:42 ahead of the field.
The clock says 18:29 faster, but the races themselves got 6:47 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.
Every race
4 races · 4 events
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Rotterdam15 Apr 2026Doubles Open · Mixed1:29:32 PB364/560Beat 35%
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Mechelen26 Mar 2026Doubles Open · Men1:09:20 PB223/593Beat 62%
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Amsterdam10 Oct 2024Individual Open · Men1:25:51 PB308/659Beat 53%
↑ 187 days after Rotterdam 2024 11:42 better than the field Why ↓Close ↑
18:29 faster on the clock, and the race was 6:47 faster for everyone, so 11:42 of it was this athlete.
The fieldCompare these two →6:47 faster This athlete18:29 faster -
Rotterdam6 Apr 2024Individual Open · Men1:44:201105/1380Beat 20%