Progress against the field
Sandra Ingeborg De Vries and Stephanie Van der Zee have dropped 1:52 behind the field from Mechelen 2026 to Heerenveen 2026.
Over the same races everyone got 4:03 quicker, so 2:11 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 Stephanie Van der Zee, the one raced most; every comparison is in the list below.
Every race
6 races · 6 events
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Maastricht19 Sep 2026Doubles Open · Women1:24:48138/418Beat 67%
↑ 498 days after Heerenveen 2025, with Katja Van Voorthuisen 0:00 better than the field Why ↓Close ↑
1:45 faster on the clock, and the race was 1:45 faster for everyone. Whatever changed, it changed for all of them.
The fieldCompare these two →1:45 faster This pair1:45 faster -
Heerenveen14 May 2026Doubles Open · Women1:20:56 PB184/513Beat 64%
↑ 29 days after Rotterdam 2026, with Stephanie Van der Zee 0:21 better than the field Why ↓Close ↑
3:35 faster on the clock, and the race was 3:14 faster for everyone, so 0:21 of it was this pair.
The fieldCompare these two →3:14 faster This pair3:35 faster -
Rotterdam15 Apr 2026Doubles Open · Women1:24:31180/466Beat 61%
↑ 20 days after Mechelen 2026, with Stephanie Van der Zee 2:13 worse than the field Why ↓Close ↑
1:24 slower on the clock in a race that was 0:49 faster for everyone: 2:13 lost to the field.
The fieldCompare these two →0:49 faster This pair1:24 slower -
Mechelen26 Mar 2026Doubles Open · Women1:23:07377/1017Beat 63%
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Heerenveen9 May 2025Doubles Open · Women1:26:33229/566Beat 60%
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Belgium5 Apr 2025Doubles Open · Women1:23:43248/713Beat 65%