Progress against the field
Timon de Geus and Martijn Sluijs have dropped 0:36 behind the field from Amsterdam 2026 to Heerenveen 2026.
Over the same races everyone got 1:27 quicker, so 0:51 faster on the clock looks better than it was.
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 Doubles Open · Men, with Martijn Sluijs, the one raced most; every comparison is in the list below.
Every race
4 races · 4 events
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Heerenveen14 May 2026Doubles Open · Men1:03:28 PB62/535Beat 88%
↑ 113 days after Amsterdam 2026, with Martijn Sluijs 0:36 worse than the field Faster on the clock, behind the field Why ↓Close ↑
0:51 faster on the clock, yet the race was 1:27 faster for everyone, so 0:36 was lost on the field.
The fieldCompare these two →1:27 faster This pair0:51 faster -
Rotterdam15 Apr 2026Doubles Open · Men1:07:02147/674Beat 78%
↑ 124 days after Gent 2025, with Xander de Geus 6:05 better than the field Why ↓Close ↑
8:16 faster on the clock, and the race was 2:11 faster for everyone, so 6:05 of it was this pair.
The fieldCompare these two →2:11 faster This pair8:16 faster -
Amsterdam21 Jan 2026Doubles Open · Men1:04:1966/342Beat 81%
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Gent12 Dec 2025Doubles Open · Men1:15:18675/1164Beat 42%