Progress against the field
Lammert Kerkhof has gained 3:31 on the field from Maastricht 2025 to Maastricht 2026.
The clock says 9:47 faster, but the races themselves got 6:16 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
11 races · 8 events
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Hamburg28 Oct 2026Doubles Open · Men57:305/520Beat 99%
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Maastricht19 Sep 2026Doubles Open · Men55:53 PB7/816Beat 99%
↑ 332 days after Paris 2025, with Dirjan Bouma 0:17 better than the field Why ↓Close ↑
0:17 better than the field: 5:08 faster on the clock, against 4:51 faster for everyone.
The fieldCompare these two →4:51 faster This pair5:08 faster -
Maastricht19 Sep 2026Relay · Men54:072/37Beat 95%
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Maastricht19 Sep 2026Individual Open · Men1:10:50 PB43/394Beat 89%
↑ 365 days after Maastricht 2025 3:31 better than the field Why ↓Close ↑
9:47 faster on the clock, and the race was 6:16 faster for everyone, so 3:31 of it was this athlete.
The fieldCompare these two →6:16 faster This athlete9:47 faster -
Heerenveen14 May 2026Doubles Open · Men1:02:3053/535Beat 90%
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Heerenveen14 May 2026Doubles Open · Men57:164/434Beat 99%
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Malaga16 Apr 2026Doubles Pro · Men59:19 PB76/343Beat 78%
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Gent12 Dec 2025Individual Pro · Men1:22:51 PB183/305Beat 40%
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Paris22 Oct 2025Doubles Open · Men1:01:0138/851Beat 96%
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Maastricht19 Sep 2025Individual Open · Men1:20:37186/584Beat 68%
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Heerenveen9 May 2025Doubles Open · Men1:03:3760/529Beat 89%