Progress against the field
Between Amsterdam 2024 and Amsterdam 2026, Marleen Mulder lost 5:44 to the field.
Over the same races everyone got 6:44 quicker, so 1:00 faster on the clock looks better than it was.
257 days between Heerenveen 2025 and Amsterdam 2026 is the longest gap compared here, and the second race was 7:11 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.
Every race
7 races · 6 events
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Heerenveen14 May 2026Individual Open · Women1:27:05160/608Beat 74%
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Malaga16 Apr 2026Individual Open · Women1:24:49105/271Beat 61%
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Amsterdam21 Jan 2026Individual Open · Women1:24:4974/287Beat 74%
↑ 257 days after Heerenveen 2025 7:11 worse than the field Why ↓Close ↑
2:23 slower on the clock in a race that was 4:48 faster for everyone: 7:11 lost to the field.
The fieldCompare these two →4:48 faster This athlete2:23 slower -
Utrecht28 Nov 2025Individual Pro · Women1:36:13 PB60/113Beat 47%
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Heerenveen9 May 2025Relay · Women1:05:484/42Beat 91%
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Heerenveen9 May 2025Individual Open · Women1:22:26 PB40/183Beat 78%
↑ 211 days after Amsterdam 2024 1:27 better than the field Why ↓Close ↑
3:23 faster on the clock, and the race was 1:56 faster for everyone, so 1:27 of it was this athlete.
The fieldCompare these two →1:56 faster This athlete3:23 faster -
Amsterdam10 Oct 2024Individual Open · Women1:25:49171/678Beat 75%