Progress against the field
From Amsterdam 2026 to Heerenveen 2026, jan willem Bogert got 4:23 faster than the field.
Over the same races everyone got 3:55 quicker, so 8:18 faster on the clock looks better than it was.
The largest gain on the field came from Amsterdam 2026 → Rotterdam 2026: 5:04 in 84 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 · MenDNF—
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Heerenveen14 May 2026Individual Open · Men1:38:36 PB420/490Beat 14%
↑ 29 days after Rotterdam 2026 0:41 worse than the field Faster on the clock, behind the field Why ↓Close ↑
1:06 faster on the clock looks better than it was: the race was 1:47 faster for everyone, which leaves this 0:41 behind the field.
The fieldCompare these two →1:47 faster This athlete1:06 faster -
Rotterdam15 Apr 2026Individual Open · Men1:39:42435/556Beat 22%
↑ 84 days after Amsterdam 2026 5:04 better than the field Why ↓Close ↑
5:04 better than the field: 7:12 faster on the clock, against 2:08 faster for everyone.
The fieldCompare these two →2:08 faster This athlete7:12 faster -
Amsterdam21 Jan 2026Individual Open · Men1:46:54496/570Beat 13%