Progress against the field
Between Amsterdam 2026 and Heerenveen 2026, Rick Kelderman pulled 1:17 ahead of the field.
Over the same races everyone got 3:55 quicker, so 5:12 faster on the clock looks better than it was.
The largest gain on the field came from Rotterdam 2026 → Heerenveen 2026: 7:51 in 29 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
6 races · 6 events
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Athens5 Sep 2026Individual Open · Men1:22:22283/616Beat 54%
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Riga30 May 2026Doubles Pro · Men1:15:00 PB90/112Beat 20%
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Heerenveen14 May 2026Individual Open · Men1:17:15 PB161/490Beat 67%
↑ 29 days after Rotterdam 2026 7:51 better than the field Why ↓Close ↑
7:51 better than the field: 9:38 faster on the clock, against 1:47 faster for everyone.
The fieldCompare these two →1:47 faster This athlete9:38 faster -
Rotterdam15 Apr 2026Individual Open · Men1:26:53603/1192Beat 49%
↑ 84 days after Amsterdam 2026 6:34 worse than the field Why ↓Close ↑
4:26 slower on the clock in a race that was 2:08 faster for everyone: 6:34 lost to the field.
The fieldCompare these two →2:08 faster This athlete4:26 slower -
Amsterdam21 Jan 2026Individual Open · Men1:22:27220/570Beat 61%
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Utrecht28 Nov 2025Doubles Open · Men1:12:03 PB305/879Beat 65%