Progress against the field
Between Amsterdam 2024 and Amsterdam 2026, Sanne Swagerman lost 10:12 to the field.
Over the same races everyone got 8:17 quicker, so 1:55 slower on the clock looks better than it was.
288 days between Rotterdam 2025 and Gent 2025 is the longest gap compared here, and the second race was 1:55 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. The summary above covers Individual Open · Women, the one raced most; every comparison is in the list below.
Every race
7 races · 7 events
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Heerenveen14 May 2026Doubles Open · Mixed1:25:00516/808Beat 36%
↑ 167 days after Utrecht 2025, with Jeroen Gijsman 0:18 worse than the field Faster on the clock, behind the field Why ↓Close ↑
4:48 faster on the clock looks better than it was: the race was 5:06 faster for everyone, which leaves this 0:18 behind the field.
The fieldCompare these two →5:06 faster This pair4:48 faster -
Amsterdam21 Jan 2026Individual Open · Women1:51:41993/1122Beat 12%
↑ 40 days after Gent 2025 12:06 worse than the field Why ↓Close ↑
9:23 slower on the clock in a race that was 2:43 faster for everyone: 12:06 lost to the field.
The fieldCompare these two →2:43 faster This athlete9:23 slower -
Gent12 Dec 2025Individual Open · Women1:42:18 PB705/1009Beat 30%
↑ 288 days after Rotterdam 2025 1:55 worse than the field Faster on the clock, behind the field Why ↓Close ↑
0:50 faster on the clock looks better than it was: the race was 2:45 faster for everyone, which leaves this 1:55 behind the field.
The fieldCompare these two →2:45 faster This athlete0:50 faster -
Utrecht28 Nov 2025Doubles Open · Mixed1:29:48476/701Beat 32%
↑ 203 days after Heerenveen 2025, with Jeroen Gijsman 9:46 worse than the field Why ↓Close ↑
8:05 slower on the clock in a race that was 1:41 faster for everyone: 9:46 lost to the field.
The fieldCompare these two →1:41 faster This pair8:05 slower -
Heerenveen9 May 2025Doubles Open · Mixed1:21:43 PB255/492Beat 48%
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Rotterdam27 Feb 2025Individual Open · Women1:43:08296/411Beat 28%
↑ 140 days after Amsterdam 2024 3:49 better than the field Why ↓Close ↑
3:49 better than the field: 6:38 faster on the clock, against 2:49 faster for everyone.
The fieldCompare these two →2:49 faster This athlete6:38 faster -
Amsterdam10 Oct 2024Individual Open · Women1:49:46547/678Beat 19%