Progress against the field
Between Belgium 2025 and Rotterdam 2026, Jana Wallays pulled 20:07 ahead of the field.
Over the same races everyone got 4:46 quicker, so 24:53 faster on the clock looks better than it was.
The biggest step was Belgium 2025 → Maastricht 2025: 19:56 on the field in 167 days.
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.
Every race
6 races · 6 events
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Valencia17 Oct 2026Individual Pro · Women1:30:45 PB112/156Beat 28%
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Rotterdam15 Apr 2026Individual Open · Women1:21:07 PB100/695Beat 86%
↑ 208 days after Maastricht 2025 0:11 better than the field Why ↓Close ↑
0:11 better than the field: 4:33 faster on the clock, against 4:22 faster for everyone.
The fieldCompare these two →4:22 faster This athlete4:33 faster -
Gent12 Dec 2025Doubles Open · Women1:12:09 PB63/882Beat 93%
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Maastricht19 Sep 2025Individual Open · Women1:25:40147/590Beat 75%
↑ 167 days after Belgium 2025 19:56 better than the field Why ↓Close ↑
20:20 faster on the clock, and the race was 0:24 faster for everyone, so 19:56 of it was this athlete.
The fieldCompare these two →0:24 faster This athlete20:20 faster -
Belgium5 Apr 2025Individual Open · Women1:46:00597/765Beat 22%
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Rotterdam27 Feb 2025Individual Pro · Women1:53:0864/77Beat 17%