Progress against the field
Between Heerenveen 2025 and Maastricht 2026, Stefanie Ten Thije Boonkkamp lost 2:55 to the field.
Over the same races everyone got 2:23 quicker, so 0:32 slower 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. The summary above covers Individual Open · Women, the one raced most; every comparison is in the list below.
Every race
6 races · 6 events
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Maastricht19 Sep 2026Individual Open · Women1:37:55117/201Beat 42%
↑ 498 days after Heerenveen 2025 2:55 worse than the field Why ↓Close ↑
0:32 slower on the clock in a race that was 2:23 faster for everyone: 2:55 lost to the field.
The fieldCompare these two →2:23 faster This athlete0:32 slower -
Gent12 Dec 2025Doubles Open · Women1:17:03 PB141/882Beat 84%
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Utrecht28 Nov 2025Doubles Open · Women1:27:01126/294Beat 57%
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Maastricht19 Sep 2025Doubles Open · Mixed1:25:54206/364Beat 43%
↑ 204 days after Rotterdam 2025, with Martijn Kerver 0:33 better than the field Slower on the clock, ahead of the field Why ↓Close ↑
1:14 slower on the clock in a race that was 1:47 slower for everyone: 0:33 gained on the field, which the clock hides.
The fieldCompare these two →1:47 slower This pair1:14 slower -
Heerenveen9 May 2025Individual Open · Women1:37:23 PB317/571Beat 45%
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Rotterdam27 Feb 2025Doubles Open · Mixed1:24:40 PB392/707Beat 45%