Progress against the field
Between Rotterdam 2023 and Maastricht 2025, Jetty van Zijll pulled 3:04 ahead of the field.
The clock says 13:33 faster, but the races themselves got 10:29 quicker for everyone.
398 days between Rotterdam 2024 and Heerenveen 2025 is the longest gap compared here, and the second race was 7:01 better than 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.
Every race
6 races · 6 events
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Heerenveen14 May 2026Doubles Open · Women1:11:20 PB44/737Beat 94%
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Maastricht19 Sep 2025Individual Open · Women1:10:21 PB12/590Beat 98%
↑ 133 days after Heerenveen 2025 1:26 better than the field Why ↓Close ↑
1:26 better than the field: 2:30 faster on the clock, against 1:04 faster for everyone.
The fieldCompare these two →1:04 faster This athlete2:30 faster -
Heerenveen9 May 2025Individual Open · Women1:12:5114/571Beat 98%
↑ 398 days after Rotterdam 2024 7:01 better than the field Why ↓Close ↑
7:01 better than the field: 9:22 faster on the clock, against 2:21 faster for everyone.
The fieldCompare these two →2:21 faster This athlete9:22 faster -
Barcelona25 Apr 2025Doubles Open · Mixed1:12:03 PB218/774Beat 72%
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Rotterdam6 Apr 2024Individual Open · Women1:22:13100/585Beat 83%
↑ 322 days after Rotterdam 2023 5:23 worse than the field Faster on the clock, behind the field Why ↓Close ↑
1:41 faster on the clock looks better than it was: the race was 7:04 faster for everyone, which leaves this 5:23 behind the field.
The fieldCompare these two →7:04 faster This athlete1:41 faster -
Rotterdam20 May 2023Individual Open · Women1:23:5462/290Beat 79%