Progress against the field
Between Amsterdam 2026 and Heerenveen 2026, Bart Kamminga and Tsjerkje Poppinga kept pace with the field.
Over the same races everyone got 1:45 quicker, so 1:32 faster on the clock looks better than it was.
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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Maastricht19 Sep 2026Doubles Open · Men1:07:40 PB196/816Beat 76%
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Heerenveen14 May 2026Doubles Open · Mixed1:01:58 PB27/808Beat 97%
↑ 113 days after Amsterdam 2026, with Tsjerkje Poppinga 0:13 worse than the field Faster on the clock, behind the field Why ↓Close ↑
1:32 faster on the clock, yet the race was 1:45 faster for everyone, so 0:13 was lost on the field.
The fieldCompare these two →1:45 faster This pair1:32 faster -
Amsterdam21 Jan 2026Doubles Open · Mixed1:03:3080/1206Beat 93%