Progress against the field
From Heerenveen 2025 to Heerenveen 2026, Janneke Schultink and Carolien Zwetsloot got 0:47 faster than the field.
Over the same races everyone got 3:47 quicker, so 4:34 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. The summary above covers Doubles Open · Women, with Carolien Zwetsloot, the one raced most; every comparison is in the list below.
Every race
7 races · 7 events
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Maastricht19 Sep 2026Doubles Open · Women1:10:17 PB20/708Beat 97%
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Heerenveen14 May 2026Doubles Open · Women1:14:1879/737Beat 89%
↑ 370 days after Heerenveen 2025, with Carolien Zwetsloot 0:47 better than the field Why ↓Close ↑
0:47 better than the field: 4:34 faster on the clock, against 3:47 faster for everyone.
The fieldCompare these two →3:47 faster This pair4:34 faster -
Gent12 Dec 2025Individual Open · Women1:16:41 PB87/1009Beat 91%
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Maastricht19 Sep 2025Doubles Open · Mixed1:14:4269/364Beat 81%
↑ 167 days after Belgium 2025, with Sander Heinsbroek 1:27 worse than the field Why ↓Close ↑
1:27 behind the field: 2:16 slower on the clock, against 0:49 slower for everyone.
The fieldCompare these two →0:49 slower This pair2:16 slower -
Heerenveen9 May 2025Doubles Open · Women1:18:5276/566Beat 87%
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Belgium5 Apr 2025Doubles Open · Mixed1:12:26 PB134/722Beat 81%
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Rotterdam6 Apr 2024Doubles Open · Women1:11:1317/564Beat 97%