Progress against the field
Between Amsterdam 2024 and Heerenveen 2025, Frits Schefferlie pulled 1:38 ahead of the field.
The clock says 6:03 faster, but the races themselves got 4:25 quicker for everyone.
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
7 races · 7 events
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Maastricht19 Sep 2026Doubles Open · Men1:21:02 PB182/239Beat 24%
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Heerenveen14 May 2026Individual Pro · Men1:30:52 PB356/454Beat 22%
↑ 153 days after Gent 2025 1:43 worse than the field Faster on the clock, behind the field Why ↓Close ↑
1:26 faster on the clock, yet the race was 3:09 faster for everyone, so 1:43 was lost on the field.
The fieldCompare these two →3:09 faster This athlete1:26 faster -
Gent12 Dec 2025Individual Pro · Men1:32:18239/305Beat 22%
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Utrecht28 Nov 2025Doubles Open · Mixed1:22:47 PB161/381Beat 58%
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Heerenveen9 May 2025Individual Open · Men1:42:11 PB1052/1217Beat 14%
↑ 71 days after Rotterdam 2025 1:26 better than the field Why ↓Close ↑
3:55 faster on the clock, and the race was 2:29 faster for everyone, so 1:26 of it was this athlete.
The fieldCompare these two →2:29 faster This athlete3:55 faster -
Rotterdam27 Feb 2025Individual Open · Men1:46:061134/1283Beat 12%
↑ 140 days after Amsterdam 2024 0:12 better than the field Why ↓Close ↑
2:08 faster on the clock, and the race was 1:56 faster for everyone, so 0:12 of it was this athlete.
The fieldCompare these two →1:56 faster This athlete2:08 faster -
Amsterdam10 Oct 2024Individual Open · Men1:48:141391/1539Beat 10%