Progress against the field
Between Mechelen 2026 and Heerenveen 2026, Esther Slobbe and Gert-Jan Slobbe pulled 1:31 ahead of the field.
The races barely moved for everyone else, so 1:56 faster on the clock is close to the whole story.
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 · Mixed, with Gert-Jan Slobbe, the one raced most; every comparison is in the list below.
Every race
10 races · 10 events
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Tenerife4 Sep 2026Doubles Open · MixedDNF—
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Heerenveen14 May 2026Doubles Open · Mixed1:29:05603/808Beat 25%
↑ 49 days after Mechelen 2026, with Gert-Jan Slobbe 1:31 better than the field Why ↓Close ↑
1:56 faster on the clock, and the race was 0:25 faster for everyone, so 1:31 of it was this pair.
The fieldCompare these two →0:25 faster This pair1:56 faster -
Mechelen26 Mar 2026Doubles Open · Mixed1:31:01779/962Beat 19%
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Katowice21 Feb 2026Doubles Open · Mixed1:26:15 PB366/488Beat 25%
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Amsterdam21 Jan 2026Doubles Open · Mixed1:29:24366/496Beat 26%
↑ 124 days after Maastricht 2025, with Gert-Jan Slobbe 3:55 better than the field Why ↓Close ↑
10:45 faster on the clock, and the race was 6:50 faster for everyone, so 3:55 of it was this pair.
The fieldCompare these two →6:50 faster This pair10:45 faster -
Maastricht19 Sep 2025Doubles Open · Mixed1:40:09307/364Beat 16%
↑ 204 days after Rotterdam 2025, with Gert-Jan Slobbe 8:52 worse than the field Why ↓Close ↑
8:52 behind the field: 10:39 slower on the clock, against 1:47 slower for everyone.
The fieldCompare these two →1:47 slower This pair10:39 slower -
Rotterdam27 Feb 2025Doubles Open · Mixed1:29:30504/707Beat 29%
↑ 140 days after Amsterdam 2024, with Gert-Jan Slobbe 0:07 better than the field Why ↓Close ↑
3:17 faster on the clock, and the race was 3:10 faster for everyone. Whatever changed, it changed for all of them.
The fieldCompare these two →3:10 faster This pair3:17 faster -
Amsterdam10 Oct 2024Doubles Open · Mixed1:32:47514/618Beat 17%
↑ 264 days after Maastricht 2024, with Gert-Jan Slobbe 1:05 worse than the field Faster on the clock, behind the field Why ↓Close ↑
2:17 faster on the clock, yet the race was 3:22 faster for everyone, so 1:05 was lost on the field.
The fieldCompare these two →3:22 faster This pair2:17 faster -
Maastricht20 Jan 2024Doubles Open · Mixed1:35:04197/230Beat 14%
↑ 77 days after Amsterdam 2023, with Gert-Jan Slobbe 2:01 worse than the field Faster on the clock, behind the field Why ↓Close ↑
0:51 faster on the clock looks better than it was: the race was 2:52 faster for everyone, which leaves this 2:01 behind the field.
The fieldCompare these two →2:52 faster This pair0:51 faster -
Amsterdam4 Nov 2023Doubles Open · Mixed1:35:55229/283Beat 19%