Progress against the field
From Rotterdam 2025 to Rotterdam 2026, the field gained 3:23 on Jurgen Koedijk and Reno Timmerman.
Over the same races everyone got 4:09 quicker, so 0:46 faster on the clock looks better than it was.
The longest gap between two races compared here, 328 days between Rotterdam 2025 and Amsterdam 2026, cost 2:55 on 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 Doubles Open · Men, with Reno Timmerman, the one raced most; every comparison is in the list below.
Every race
5 races · 5 events
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Rotterdam15 Apr 2026Doubles Open · Men59:2114/580Beat 98%
↑ 84 days after Amsterdam 2026, with Reno Timmerman 0:28 worse than the field Why ↓Close ↑
0:33 slower on the clock in a race that was 0:05 slower for everyone: 0:28 lost to the field.
The fieldCompare these two →0:05 slower This pair0:33 slower -
Amsterdam21 Jan 2026Doubles Open · Men58:48 PB30/994Beat 97%
↑ 328 days after Rotterdam 2025, with Reno Timmerman 2:55 worse than the field Faster on the clock, behind the field Why ↓Close ↑
1:19 faster on the clock, yet the race was 4:14 faster for everyone, so 2:55 was lost on the field.
The fieldCompare these two →4:14 faster This pair1:19 faster -
Rotterdam27 Feb 2025Doubles Open · Men1:00:0710/335Beat 97%
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Maastricht20 Jan 2024Individual Open · Men1:16:44 PB163/781Beat 79%
↑ 77 days after Amsterdam 2023 0:43 worse than the field Faster on the clock, behind the field Why ↓Close ↑
4:18 faster on the clock looks better than it was: the race was 5:01 faster for everyone, which leaves this 0:43 behind the field.
The fieldCompare these two →5:01 faster This athlete4:18 faster -
Amsterdam4 Nov 2023Individual Open · Men1:21:02260/1079Beat 76%