Progress against the field
Femke De Jong has gained 4:46 on the field from Heerenveen 2025 to Amsterdam 2026.
The clock says 12:45 faster, but the races themselves got 7:59 quicker for everyone.
The largest gain on the field came from Heerenveen 2025 → Maastricht 2025: 5:08 in 133 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. 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 2026Doubles Open · Mixed1:14:31203/743Beat 73%
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Maastricht19 Sep 2026Individual Open · Women1:27:09 PB140/577Beat 76%
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Maastricht19 Sep 2026Individual Open · Women1:54:12171/201Beat 15%
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Heerenveen14 May 2026Doubles Open · Women1:22:25258/737Beat 65%
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Heerenveen14 May 2026Doubles Open · Mixed1:13:26 PB124/461Beat 73%
↑ 167 days after Utrecht 2025, with Marc Marinus 3:36 better than the field Why ↓Close ↑
3:36 better than the field: 8:42 faster on the clock, against 5:06 faster for everyone.
The fieldCompare these two →5:06 faster This pair8:42 faster -
Rotterdam15 Apr 2026Relay · Women1:21:5834/84Beat 60%
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Rotterdam15 Apr 2026Individual Pro · Women1:39:58 PB105/128Beat 18%
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Mechelen26 Mar 2026Doubles Open · Women1:17:55 PB189/1017Beat 81%
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Bangkok 120 Mar 2026Individual Open · Women2:05:18932/1260Beat 26%
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Amsterdam21 Jan 2026Individual Open · Women1:36:13161/288Beat 44%
↑ 124 days after Maastricht 2025 0:22 worse than the field Faster on the clock, behind the field Why ↓Close ↑
6:33 faster on the clock, yet the race was 6:55 faster for everyone, so 0:22 was lost on the field.
The fieldCompare these two →6:55 faster This athlete6:33 faster -
Utrecht28 Nov 2025Doubles Open · Mixed1:22:08155/381Beat 59%
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Maastricht19 Sep 2025Individual Open · Women1:42:46411/590Beat 30%
↑ 133 days after Heerenveen 2025 5:08 better than the field Why ↓Close ↑
6:12 faster on the clock, and the race was 1:04 faster for everyone, so 5:08 of it was this athlete.
The fieldCompare these two →1:04 faster This athlete6:12 faster -
Heerenveen9 May 2025Individual Open · Women1:48:58447/571Beat 22%
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Paris 118 Apr 2025Doubles Open · Women1:21:51289/656Beat 56%
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Hamburg2 Nov 2024Doubles Open · Women1:37:47529/609Beat 13%