Progress against the field
From Rotterdam 2025 to Rotterdam 2026, the field gained 0:29 on Sam Tolboom.
The clock says 6:02 faster, but the races themselves got 6:31 quicker for everyone.
The longest gap between two races compared here, 328 days between Rotterdam 2025 and Amsterdam 2026, still ended 2:31 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
3 races · 3 events
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Rotterdam15 Apr 2026Individual Open · Men1:24:23240/556Beat 57%
↑ 84 days after Amsterdam 2026 3:00 worse than the field Why ↓Close ↑
0:52 slower on the clock in a race that was 2:08 faster for everyone: 3:00 lost to the field.
The fieldCompare these two →2:08 faster This athlete0:52 slower -
Amsterdam21 Jan 2026Individual Open · Men1:23:31 PB293/608Beat 52%
↑ 328 days after Rotterdam 2025 2:31 better than the field Why ↓Close ↑
2:31 better than the field: 6:54 faster on the clock, against 4:23 faster for everyone.
The fieldCompare these two →4:23 faster This athlete6:54 faster -
Rotterdam27 Feb 2025Individual Open · Men1:30:25376/600Beat 37%