Progress against the field
Between Amsterdam 2023 and Rotterdam 2024, Stephan de Groot lost 3:59 to the field.
The clock says 1:29 slower, but the races themselves got 2:30 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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Belgium5 Apr 2025Individual Pro · Men1:19:25 PB92/203Beat 55%
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Rotterdam6 Apr 2024Individual Open · Men1:14:2498/1380Beat 93%
↑ 154 days after Amsterdam 2023 3:59 worse than the field Why ↓Close ↑
1:29 slower on the clock in a race that was 2:30 faster for everyone: 3:59 lost to the field.
The fieldCompare these two →2:30 faster This athlete1:29 slower -
Amsterdam4 Nov 2023Individual Open · Men1:12:55 PB75/1079Beat 93%
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Rotterdam20 May 2023Doubles Open · Men1:09:16 PB61/249Beat 76%