Progress against the field
Between Amsterdam 2023 and Heerenveen 2025, Reno Timmerman lost 3:49 to the field.
Over the same races everyone got 12:39 quicker, so 8:50 faster on the clock looks better than it was.
The longest gap between two races compared here, 211 days between Amsterdam 2024 and Heerenveen 2025, cost 2:00 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 Individual Open · Men, the one raced most; every comparison is in the list below.
Every race
10 races · 9 events
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Heerenveen14 May 2026Doubles Open · Men57:28 PB12/494Beat 98%
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Heerenveen14 May 2026Doubles Pro · Men1:09:42 PB159/315Beat 50%
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Rotterdam15 Apr 2026Doubles Open · Men59:2114/580Beat 98%
↑ 84 days after Amsterdam 2026, with Jurgen Koedijk 0:28 worse than the field Why ↓Close ↑
0:28 behind the field: 0:33 slower on the clock, against 0:05 slower for everyone.
The fieldCompare these two →0:05 slower This pair0:33 slower -
Amsterdam21 Jan 2026Doubles Open · Men58:4830/994Beat 97%
↑ 328 days after Rotterdam 2025, with Jurgen Koedijk 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 -
Heerenveen9 May 2025Individual Open · Men1:09:48 PB112/1217Beat 91%
↑ 211 days after Amsterdam 2024 2:00 worse than the field Faster on the clock, behind the field Why ↓Close ↑
0:40 faster on the clock looks better than it was: the race was 2:40 faster for everyone, which leaves this 2:00 behind the field.
The fieldCompare these two →2:40 faster This athlete0:40 faster -
Rotterdam27 Feb 2025Doubles Open · Men1:00:0710/335Beat 97%
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Amsterdam10 Oct 2024Individual Open · Men1:10:28140/1539Beat 91%
↑ 187 days after Rotterdam 2024 2:26 worse than the field Faster on the clock, behind the field Why ↓Close ↑
4:21 faster on the clock looks better than it was: the race was 6:47 faster for everyone, which leaves this 2:26 behind the field.
The fieldCompare these two →6:47 faster This athlete4:21 faster -
Rotterdam6 Apr 2024Individual Open · Men1:14:49112/1380Beat 92%
↑ 77 days after Maastricht 2024 3:59 better than the field Why ↓Close ↑
2:10 faster on the clock in a race that was 1:49 slower for everyone: 3:59 better than the field.
The fieldCompare these two →1:49 slower This athlete2:10 faster -
Maastricht20 Jan 2024Individual Open · Men1:16:59168/781Beat 79%
↑ 77 days after Amsterdam 2023 3:22 worse than the field Faster on the clock, behind the field Why ↓Close ↑
1:39 faster on the clock, yet the race was 5:01 faster for everyone, so 3:22 was lost on the field.
The fieldCompare these two →5:01 faster This athlete1:39 faster -
Amsterdam4 Nov 2023Individual Open · Men1:18:38185/1079Beat 83%