Progress against the field
Between Amsterdam 2026 and Heerenveen 2026, Marlous Tonies-Soesbergen lost 0:33 to the field.
Over the same races everyone got 2:09 quicker, so 1:36 faster on the clock looks better than it was.
The largest gain on the field came from Rotterdam 2026 → Heerenveen 2026: 4:52 in 29 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
7 races · 7 events
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Stockholm18 Jun 2026Doubles Pro · Women1:06:30 PB218/689Beat 68%
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Heerenveen14 May 2026Individual Pro · Women1:18:50 PB47/155Beat 70%
↑ 29 days after Rotterdam 2026 4:52 better than the field Why ↓Close ↑
4:52 better than the field: 6:51 faster on the clock, against 1:59 faster for everyone.
The fieldCompare these two →1:59 faster This athlete6:51 faster -
Rotterdam15 Apr 2026Individual Pro · Women1:25:4168/128Beat 47%
↑ 84 days after Amsterdam 2026 5:25 worse than the field Why ↓Close ↑
5:25 behind the field: 5:15 slower on the clock, against 0:10 faster for everyone.
The fieldCompare these two →0:10 faster This athlete5:15 slower -
Amsterdam21 Jan 2026Individual Pro · Women1:20:2654/128Beat 58%
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Utrecht28 Nov 2025Doubles Pro · Women1:09:0313/102Beat 87%
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Maastricht19 Sep 2025Doubles Pro · Women1:08:575/62Beat 92%
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Rotterdam6 Apr 2024Individual Pro · Women1:29:3124/64Beat 63%