Progress against the field
Janne van der Sanden has dropped 4:17 behind the field from Amsterdam 2024 to Maastricht 2026.
Over the same races everyone got 10:07 quicker, so 5:50 faster on the clock looks better than it was.
188 days between Maastricht 2025 and Mechelen 2026 is the longest gap compared here, and the second race was 8:30 behind the field.
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
16 races · 11 events
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Maastricht19 Sep 2026Individual Open · Women1:15:30 PB32/577Beat 95%
↑ 177 days after Mechelen 2026 4:55 better than the field Why ↓Close ↑
The race was 0:34 slower for everyone and the clock still says 4:21 faster: 4:55 gained on the field.
The fieldCompare these two →0:34 slower This athlete4:21 faster -
Maastricht19 Sep 2026Doubles Open · Women1:13:4026/418Beat 94%
↑ 157 days after Rotterdam 2026, with Julie van der Laan 1:26 worse than the field Why ↓Close ↑
1:26 behind the field: 1:09 slower on the clock, against 0:17 faster for everyone.
The fieldCompare these two →0:17 faster This pair1:09 slower -
Heerenveen14 May 2026Doubles Open · Mixed1:00:17 PB23/808Beat 97%
↑ 153 days after Gent 2025, with Nicky Van Osselaer 1:50 worse than the field Faster on the clock, behind the field Why ↓Close ↑
0:54 faster on the clock looks better than it was: the race was 2:44 faster for everyone, which leaves this 1:50 behind the field.
The fieldCompare these two →2:44 faster This pair0:54 faster -
Heerenveen14 May 2026Individual Pro · Women1:22:3169/155Beat 56%
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Rotterdam15 Apr 2026Doubles Open · Women1:12:31 PB64/936Beat 93%
↑ 124 days after Gent 2025, with Julie van der Laan 3:41 better than the field Why ↓Close ↑
6:48 faster on the clock, and the race was 3:07 faster for everyone, so 3:41 of it was this pair.
The fieldCompare these two →3:07 faster This pair6:48 faster -
Mechelen26 Mar 2026Individual Open · Women1:19:51101/776Beat 87%
↑ 188 days after Maastricht 2025 8:30 worse than the field Why ↓Close ↑
8:30 behind the field: 2:40 slower on the clock, against 5:50 faster for everyone.
The fieldCompare these two →5:50 faster This athlete2:40 slower -
Vienna6 Feb 2026Individual Pro · Women1:20:40 PB58/125Beat 54%
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Amsterdam21 Jan 2026Doubles Open · MixedDNF—
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Gent12 Dec 2025Doubles Open · Women1:19:19205/882Beat 77%
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Gent12 Dec 2025Doubles Open · Mixed1:01:1122/863Beat 98%
↑ 84 days after Maastricht 2025, with Nicky Van Osselaer 2:56 worse than the field Faster on the clock, behind the field Why ↓Close ↑
2:49 faster on the clock looks better than it was: the race was 5:45 faster for everyone, which leaves this 2:56 behind the field.
The fieldCompare these two →5:45 faster This pair2:49 faster -
Maastricht19 Sep 2025Doubles Open · Mixed1:04:0011/658Beat 98%
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Maastricht19 Sep 2025Individual Open · Women1:17:1119/348Beat 95%
↑ 167 days after Belgium 2025 0:37 worse than the field Why ↓Close ↑
0:37 behind the field: 0:13 slower on the clock, against 0:24 faster for everyone.
The fieldCompare these two →0:24 faster This athlete0:13 slower -
Belgium5 Apr 2025Individual Open · Women1:16:5857/765Beat 93%
↑ 37 days after Rotterdam 2025 0:18 worse than the field Faster on the clock, behind the field Why ↓Close ↑
1:20 faster on the clock looks better than it was: the race was 1:38 faster for everyone, which leaves this 0:18 behind the field.
The fieldCompare these two →1:38 faster This athlete1:20 faster -
Belgium5 Apr 2025Doubles Open · Women1:13:0152/713Beat 93%
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Rotterdam27 Feb 2025Individual Open · Women1:18:1832/411Beat 92%
↑ 140 days after Amsterdam 2024 0:13 better than the field Why ↓Close ↑
0:13 better than the field: 3:02 faster on the clock, against 2:49 faster for everyone.
The fieldCompare these two →2:49 faster This athlete3:02 faster -
Amsterdam10 Oct 2024Individual Open · Women1:21:20101/678Beat 85%