Progress against the field
Jeroen Thiesen has gained 13:51 on the field from Heerenveen 2025 to Maastricht 2026.
Over the same races everyone got 7:34 quicker, so 21:25 faster on the clock looks better than it was.
Ahead of the field in 3 of 4 comparisons.
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
5 races · 5 events
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Maastricht19 Sep 2026Individual Open · Men1:25:43 PB188/394Beat 52%
↑ 241 days after Amsterdam 2026 5:13 better than the field Why ↓Close ↑
5:13 better than the field: 5:53 faster on the clock, against 0:40 faster for everyone.
The fieldCompare these two →0:40 faster This athlete5:53 faster -
Amsterdam21 Jan 2026Individual Open · Men1:31:36434/608Beat 29%
↑ 40 days after Gent 2025 1:02 worse than the field Faster on the clock, behind the field Why ↓Close ↑
1:59 faster on the clock looks better than it was: the race was 3:01 faster for everyone, which leaves this 1:02 behind the field.
The fieldCompare these two →3:01 faster This athlete1:59 faster -
Gent12 Dec 2025Individual Open · Men1:33:351048/1428Beat 27%
↑ 84 days after Maastricht 2025 0:53 better than the field Why ↓Close ↑
6:28 faster on the clock, and the race was 5:35 faster for everyone, so 0:53 of it was this athlete.
The fieldCompare these two →5:35 faster This athlete6:28 faster -
Maastricht19 Sep 2025Individual Open · Men1:40:03453/584Beat 22%
↑ 133 days after Heerenveen 2025 8:47 better than the field Why ↓Close ↑
7:05 faster on the clock in a race that was 1:42 slower for everyone: 8:47 better than the field.
The fieldCompare these two →1:42 slower This athlete7:05 faster -
Heerenveen9 May 2025Individual Open · Men1:47:08280/325Beat 14%