Progress against the field
Jelte Westra has dropped 0:45 behind the field from Rotterdam 2026 to Maastricht 2026.
The races themselves barely changed, so 0:24 slower on the clock is the real picture.
The largest gain on the field came from Rotterdam 2026 → Heerenveen 2026: 8:17 in 29 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
3 races · 3 events
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Maastricht19 Sep 2026Individual Open · Men1:47:08346/394Beat 12%
↑ 128 days after Heerenveen 2026 9:02 worse than the field Why ↓Close ↑
9:02 behind the field: 10:28 slower on the clock, against 1:26 slower for everyone.
The fieldCompare these two →1:26 slower This athlete10:28 slower -
Heerenveen14 May 2026Individual Open · Men1:36:40 PB760/966Beat 21%
↑ 29 days after Rotterdam 2026 8:17 better than the field Why ↓Close ↑
8:17 better than the field: 10:04 faster on the clock, against 1:47 faster for everyone.
The fieldCompare these two →1:47 faster This athlete10:04 faster -
Rotterdam15 Apr 2026Individual Open · Men1:46:441036/1192Beat 13%