Progress against the field
Between Stockholm 2025 and Maastricht 2026, Jeffrey De Vries pulled 3:39 ahead of the field.
Over the same races everyone got 2:48 quicker, so 6:27 faster on the clock looks better than it was.
The longest gap between two races compared here, 241 days between Amsterdam 2026 and Maastricht 2026, still ended 3:34 ahead of 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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Maastricht19 Sep 2026Individual Open · Men1:10:53 PB131/1119Beat 88%
↑ 241 days after Amsterdam 2026 3:34 better than the field Why ↓Close ↑
3:34 better than the field: 4:14 faster on the clock, against 0:40 faster for everyone.
The fieldCompare these two →0:40 faster This athlete4:14 faster -
Heerenveen14 May 2026Doubles Open · Mixed1:20:40406/808Beat 50%
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Rotterdam15 Apr 2026Doubles Open · Men1:07:16 PB87/580Beat 85%
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Mechelen26 Mar 2026Doubles Open · Mixed1:14:00 PB289/962Beat 70%
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Amsterdam21 Jan 2026Individual Open · Men1:15:07369/1620Beat 77%
↑ 34 days after Stockholm 2025 0:05 better than the field Why ↓Close ↑
2:13 faster on the clock, and the race was 2:08 faster for everyone. Whatever changed, it changed for all of them.
The fieldCompare these two →2:08 faster This athlete2:13 faster -
Stockholm18 Dec 2025Individual Open · Men1:17:20137/490Beat 72%
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Utrecht28 Nov 2025Individual Open · Men1:21:49397/1337Beat 70%
↑ 70 days after Maastricht 2025 3:45 better than the field Why ↓Close ↑
3:45 better than the field: 7:21 faster on the clock, against 3:36 faster for everyone.
The fieldCompare these two →3:36 faster This athlete7:21 faster -
Maastricht19 Sep 2025Individual Open · Men1:29:10640/1352Beat 53%
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Heerenveen9 May 2025Doubles Open · Men1:13:16223/529Beat 58%
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Heerenveen9 May 2025Doubles Open · Men1:11:36108/309Beat 65%