Progress against the field
Isabelle Jansen and Denise van der Kleij have gained 1:21 on the field from Gent 2025 to Mechelen 2026.
Over the same races everyone got 3:56 quicker, so 5:17 faster on the clock looks better than it was.
The largest gain on the field came from Gent 2025 → Amsterdam 2026: 4:14 in 40 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 Doubles Open · Women, with Denise van der Kleij, the one raced most; every comparison is in the list below.
Every race
6 races · 5 events
-
Heerenveen14 May 2026Individual Open · Women1:18:48 PB53/608Beat 91%
↑ 29 days after Rotterdam 2026 2:06 better than the field Why ↓Close ↑
5:25 faster on the clock, and the race was 3:19 faster for everyone, so 2:06 of it was this athlete.
The fieldCompare these two →3:19 faster This athlete5:25 faster -
Rotterdam15 Apr 2026Doubles Pro · Women1:15:54 PB78/226Beat 66%
-
Rotterdam15 Apr 2026Individual Open · Women1:24:1371/485Beat 85%
-
Mechelen26 Mar 2026Doubles Open · Women1:11:0324/380Beat 94%
↑ 64 days after Amsterdam 2026, with Denise van der Kleij 2:53 worse than the field Why ↓Close ↑
1:13 slower on the clock in a race that was 1:40 faster for everyone: 2:53 lost to the field.
The fieldCompare these two →1:40 faster This pair1:13 slower -
Amsterdam21 Jan 2026Doubles Open · Women1:09:50 PB45/1030Beat 96%
↑ 40 days after Gent 2025, with Denise van der Kleij 4:14 better than the field Why ↓Close ↑
4:14 better than the field: 6:30 faster on the clock, against 2:16 faster for everyone.
The fieldCompare these two →2:16 faster This pair6:30 faster -
Gent12 Dec 2025Doubles Open · Women1:16:20128/882Beat 86%