Progress against the field
From Heerenveen 2025 to Amsterdam 2026, Isabelle Fransen - Koops and Roeland Koops got 5:34 faster than the field.
The clock says 12:42 faster, but the races themselves got 7:08 quicker for everyone.
The largest gain on the field came from Heerenveen 2025 → Maastricht 2025: 8:04 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.
Every race
4 races · 4 events
-
Amsterdam21 Jan 2026Doubles Open · Mixed1:19:12255/506Beat 50%
↑ 54 days after Utrecht 2025, with Roeland Koops 5:59 worse than the field Why ↓Close ↑
1:09 slower on the clock in a race that was 4:50 faster for everyone: 5:59 lost to the field.
The fieldCompare these two →4:50 faster This pair1:09 slower -
Utrecht28 Nov 2025Doubles Open · Mixed1:18:03 PB194/701Beat 72%
↑ 70 days after Maastricht 2025, with Roeland Koops 3:29 better than the field Why ↓Close ↑
3:29 better than the field: 8:01 faster on the clock, against 4:32 faster for everyone.
The fieldCompare these two →4:32 faster This pair8:01 faster -
Maastricht19 Sep 2025Doubles Open · Mixed1:26:04212/364Beat 42%
↑ 133 days after Heerenveen 2025, with Roeland Koops 8:04 better than the field Why ↓Close ↑
The race was 2:14 slower for everyone and the clock still says 5:50 faster: 8:04 gained on the field.
The fieldCompare these two →2:14 slower This pair5:50 faster -
Heerenveen9 May 2025Doubles Open · Mixed1:31:54396/492Beat 20%