Progress against the field
Between Amsterdam 2023 and Amsterdam 2026, Frederique Van Der Werf pulled 3:15 ahead of the field.
The clock says 8:42 faster, but the races themselves got 5:27 quicker for everyone.
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
15 races · 12 events
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Valencia17 Oct 2026Individual Pro · Women1:09:17 PB17/156Beat 89%
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Stockholm18 Jun 2026Doubles Pro · Women1:05:56193/689Beat 72%
↑ 202 days after Utrecht 2025, with Marlies Bergsma 2:19 worse than the field Why ↓Close ↑
3:19 slower on the clock in a race that was 1:00 slower for everyone: 2:19 lost to the field.
The fieldCompare these two →1:00 slower This pair3:19 slower -
Heerenveen14 May 2026Relay · Mixed54:521/66Beat 99%
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Heerenveen14 May 2026Doubles Pro · WomenDNF—
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Mechelen26 Mar 2026Doubles Open · Mixed1:18:33423/962Beat 56%
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Mechelen26 Mar 2026Doubles Open · Mixed57:52 PB7/394Beat 98%
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Auckland29 Jan 2026Individual Pro · Women1:16:1913/117Beat 89%
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Auckland29 Jan 2026Doubles Open · Mixed1:02:477/542Beat 99%
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Amsterdam21 Jan 2026Individual Open · Women1:31:54 PB559/1122Beat 50%
↑ 809 days after Amsterdam 2023 3:15 better than the field Why ↓Close ↑
8:42 faster on the clock, and the race was 5:27 faster for everyone, so 3:15 of it was this athlete.
The fieldCompare these two →5:27 faster This athlete8:42 faster -
Utrecht28 Nov 2025Doubles Pro · Women1:02:37 PB1/102Beat 99%
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Hamburg2 Oct 2025Doubles Open · Mixed1:00:075/339Beat 99%
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Rome26 Sep 2025Doubles Pro · Women1:06:3511/61Beat 82%
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Heerenveen9 May 2025Doubles Pro · Women1:10:2210/69Beat 86%
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Amsterdam10 Oct 2024Doubles Pro · Women1:13:2014/67Beat 79%
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Amsterdam4 Nov 2023Individual Open · Women1:40:36253/394Beat 36%