Progress against the field
Between Heerenveen 2025 and Mechelen 2026, Sander Tax pulled 11:32 ahead of the field.
The clock says 18:35 faster, but the races themselves got 7:03 quicker for everyone.
The longest gap between two races compared here, 217 days between Heerenveen 2025 and Frankfurt 2025, still ended 4:59 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
5 races · 5 events
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Maastricht19 Sep 2026Doubles Open · Men1:19:59 PB576/816Beat 29%
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Rotterdam15 Apr 2026Doubles Pro · Men1:11:34 PB254/385Beat 34%
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Mechelen26 Mar 2026Individual Open · Men1:15:53 PB246/747Beat 67%
↑ 104 days after Frankfurt 2025 6:33 better than the field Why ↓Close ↑
6:33 better than the field: 11:43 faster on the clock, against 5:10 faster for everyone.
The fieldCompare these two →5:10 faster This athlete11:43 faster -
Frankfurt12 Dec 2025Individual Open · Men1:27:361007/1883Beat 47%
↑ 217 days after Heerenveen 2025 4:59 better than the field Why ↓Close ↑
6:52 faster on the clock, and the race was 1:53 faster for everyone, so 4:59 of it was this athlete.
The fieldCompare these two →1:53 faster This athlete6:52 faster -
Heerenveen9 May 2025Individual Open · Men1:34:28222/325Beat 32%