Progress against the field
Between Amsterdam 2024 and Utrecht 2025, Juriaan Calis pulled 10:35 ahead of the field.
The clock says 12:34 faster, but the races themselves got 1:59 quicker for everyone.
The longest gap between two races compared here, 237 days between Belgium 2025 and Utrecht 2025, still ended 5:30 ahead of the field.
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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Amsterdam21 Jan 2026Doubles Open · Men1:14:16 PB579/994Beat 42%
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Utrecht28 Nov 2025Individual Open · Men1:22:17 PB417/1337Beat 69%
↑ 237 days after Belgium 2025 5:30 better than the field Why ↓Close ↑
5:30 better than the field: 5:53 faster on the clock, against 0:23 faster for everyone.
The fieldCompare these two →0:23 faster This athlete5:53 faster -
Belgium5 Apr 2025Individual Open · Men1:28:10903/1638Beat 45%
↑ 177 days after Amsterdam 2024 5:05 better than the field Why ↓Close ↑
6:41 faster on the clock, and the race was 1:36 faster for everyone, so 5:05 of it was this athlete.
The fieldCompare these two →1:36 faster This athlete6:41 faster -
Amsterdam10 Oct 2024Individual Open · Men1:34:511116/1539Beat 28%