Progress against the field
Jeffrey Zwarts has gained 3:03 on the field from Amsterdam 2026 to Heerenveen 2026.
The clock says 5:38 faster, but the races themselves got 2:35 quicker for everyone.
The largest gain on the field came from Amsterdam 2026 → Mechelen 2026: 3:14 in 64 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
7 races · 7 events
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Heerenveen14 May 2026Individual Pro · Men1:07:42 PB86/454Beat 81%
↑ 49 days after Mechelen 2026 0:11 worse than the field Faster on the clock, behind the field Why ↓Close ↑
0:05 faster on the clock looks better than it was: the race was 0:16 faster for everyone, which leaves this 0:11 behind the field.
The fieldCompare these two →0:16 faster This athlete0:05 faster -
Mechelen26 Mar 2026Individual Pro · Men1:07:47127/457Beat 72%
↑ 64 days after Amsterdam 2026 3:14 better than the field Why ↓Close ↑
3:14 better than the field: 5:33 faster on the clock, against 2:19 faster for everyone.
The fieldCompare these two →2:19 faster This athlete5:33 faster -
Amsterdam21 Jan 2026Individual Pro · Men1:13:2038/107Beat 65%
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Utrecht28 Nov 2025Doubles Open · Mixed1:16:5393/381Beat 76%
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Heerenveen9 May 2025Doubles Open · Mixed1:09:14 PB27/250Beat 89%
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Rotterdam6 Apr 2024Doubles Pro · Men59:19 PB7/101Beat 93%
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Amsterdam4 Nov 2023Doubles Open · Men1:03:36 PB30/411Beat 93%