Progress against the field
From Heerenveen 2025 to Rotterdam 2026, Donovan Rijlaarsdam got 7:28 faster than the field.
Over the same races everyone got 9:02 quicker, so 16:30 faster on the clock looks better than it was.
The largest gain on the field came from Heerenveen 2025 → Maastricht 2025: 10:13 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 · Men, the one raced most; every comparison is in the list below.
Every race
10 races · 9 events
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Maastricht19 Sep 2026Doubles Open · Mixed1:02:5114/444Beat 97%
↑ 128 days after Heerenveen 2026, with Karlijn Hol 0:15 worse than the field Why ↓Close ↑
0:15 behind the field: 1:08 slower on the clock, against 0:53 slower for everyone.
The fieldCompare these two →0:53 slower This pair1:08 slower -
Heerenveen14 May 2026Doubles Open · Mixed1:01:43 PB20/461Beat 96%
↑ 167 days after Utrecht 2025, with Karlijn Hol 3:03 worse than the field Faster on the clock, behind the field Why ↓Close ↑
2:03 faster on the clock, yet the race was 5:06 faster for everyone, so 3:03 was lost on the field.
The fieldCompare these two →5:06 faster This pair2:03 faster -
Rotterdam15 Apr 2026Individual Open · Men1:03:47 PB13/570Beat 98%
↑ 84 days after Amsterdam 2026 0:38 better than the field Why ↓Close ↑
2:46 faster on the clock, and the race was 2:08 faster for everyone, so 0:38 of it was this athlete.
The fieldCompare these two →2:08 faster This athlete2:46 faster -
Amsterdam21 Jan 2026Individual Open · Men1:06:3336/608Beat 94%
↑ 40 days after Gent 2025 1:41 worse than the field Faster on the clock, behind the field Why ↓Close ↑
1:20 faster on the clock, yet the race was 3:01 faster for everyone, so 1:41 was lost on the field.
The fieldCompare these two →3:01 faster This athlete1:20 faster -
Gent12 Dec 2025Individual Open · Men1:07:5393/1428Beat 94%
↑ 84 days after Maastricht 2025 1:42 worse than the field Faster on the clock, behind the field Why ↓Close ↑
3:53 faster on the clock, yet the race was 5:35 faster for everyone, so 1:42 was lost on the field.
The fieldCompare these two →5:35 faster This athlete3:53 faster -
Utrecht28 Nov 2025Doubles Open · Mixed1:03:465/381Beat 99%
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Maastricht19 Sep 2025Individual Open · Men1:11:4656/584Beat 90%
↑ 133 days after Heerenveen 2025 10:13 better than the field Why ↓Close ↑
8:31 faster on the clock in a race that was 1:42 slower for everyone: 10:13 better than the field.
The fieldCompare these two →1:42 slower This athlete8:31 faster -
Heerenveen9 May 2025Relay · Men58:527/21Beat 67%
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Heerenveen9 May 2025Individual Open · Men1:20:17109/325Beat 67%
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Belgium5 Apr 2025Doubles Open · Mixed1:15:19200/722Beat 72%