Progress against the field
From Amsterdam 2026 to Maastricht 2026, Tatum Derksen got 16:34 faster than the field.
The races barely moved for everyone else, so 16:16 faster on the clock is close to the whole story.
The largest gain on the field came from Amsterdam 2026 → Heerenveen 2026: 11:46 in 113 days.
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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Maastricht19 Sep 2026Individual Open · Women1:28:13 PB77/295Beat 74%
↑ 128 days after Heerenveen 2026 4:48 better than the field Why ↓Close ↑
3:11 faster on the clock in a race that was 1:37 slower for everyone: 4:48 better than the field.
The fieldCompare these two →1:37 slower This athlete3:11 faster -
Heerenveen14 May 2026Individual Open · Women1:31:24233/608Beat 62%
↑ 113 days after Amsterdam 2026 11:46 better than the field Why ↓Close ↑
11:46 better than the field: 13:05 faster on the clock, against 1:19 faster for everyone.
The fieldCompare these two →1:19 faster This athlete13:05 faster -
Rotterdam15 Apr 2026Doubles Open · Mixed1:28:54 PB347/560Beat 38%
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Amsterdam21 Jan 2026Individual Open · Women1:44:29215/287Beat 25%