Progress against the field
Between Amsterdam 2023 and Rotterdam 2026, Delano de Roos pulled 6:56 ahead of the field.
The clock says 16:08 faster, but the races themselves got 9:12 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
3 races · 3 events
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Rotterdam15 Apr 2026Individual Open · Men1:36:40 PB885/1192Beat 26%
↑ 893 days after Amsterdam 2023 6:56 better than the field Why ↓Close ↑
16:08 faster on the clock, and the race was 9:12 faster for everyone, so 6:56 of it was this athlete.
The fieldCompare these two →9:12 faster This athlete16:08 faster -
Utrecht28 Nov 2025Doubles Open · Mixed1:49:02 PB663/701Beat 5%
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Amsterdam4 Nov 2023Individual Open · Men1:52:48973/1079Beat 10%