Progress against the field
sietse de Jong has gained 21:25 on the field from Maastricht European Championships 2023 to Frankfurt 2023.
Over the same races everyone got 5:16 quicker, so 26:41 faster on the clock looks better than it was.
The biggest step was Maastricht European Championships 2023 → Rotterdam 2023: 17:02 on the field in 119 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. The summary above covers Individual Open · Men, the one raced most; every comparison is in the list below.
Every race
9 races · 8 events
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Rotterdam15 Apr 2026Doubles Open · Mixed1:13:36 PB205/1047Beat 80%
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Rotterdam15 Apr 2026Doubles Open · Mixed1:16:19134/544Beat 75%
↑ 138 days after Utrecht 2025, with Amy Van der Heijden 2:34 better than the field Why ↓Close ↑
2:34 better than the field: 6:50 faster on the clock, against 4:16 faster for everyone.
The fieldCompare these two →4:16 faster This pair6:50 faster -
Utrecht28 Nov 2025Doubles Open · Mixed1:23:09331/701Beat 53%
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Amsterdam10 Oct 2024Doubles Open · Men1:07:55 PB152/855Beat 82%
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Rotterdam6 Apr 2024Individual Open · Men1:22:30321/1380Beat 77%
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Frankfurt9 Dec 2023Individual Open · Men1:22:22 PB325/843Beat 61%
↑ 35 days after Amsterdam 2023 2:25 better than the field Why ↓Close ↑
2:44 faster on the clock, and the race was 0:19 faster for everyone, so 2:25 of it was this athlete.
The fieldCompare these two →0:19 faster This athlete2:44 faster -
Amsterdam4 Nov 2023Individual Open · Men1:25:06403/1079Beat 63%
↑ 168 days after Rotterdam 2023 1:58 better than the field Why ↓Close ↑
4:35 faster on the clock, and the race was 2:37 faster for everyone, so 1:58 of it was this athlete.
The fieldCompare these two →2:37 faster This athlete4:35 faster -
Rotterdam20 May 2023Individual Open · Men1:29:41304/575Beat 47%
↑ 119 days after Maastricht European Championships 2023 17:02 better than the field Why ↓Close ↑
19:22 faster on the clock, and the race was 2:20 faster for everyone, so 17:02 of it was this athlete.
The fieldCompare these two →2:20 faster This athlete19:22 faster -
Maastricht European Championships21 Jan 2023Individual Open · Men1:49:03524/556Beat 6%