Progress against the field
Between Rotterdam 2024 and Belgium 2025, Ziggy Goossens and Tycho Seetsen pulled 7:03 ahead of the field.
Over the same races everyone got 6:24 quicker, so 13:27 faster on the clock looks better than it was.
The longest gap between two races compared here, 187 days between Rotterdam 2024 and Amsterdam 2024, still ended 5:51 ahead of the field.
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
4 races · 4 events
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Gent12 Dec 2025Doubles Open · MenDNF—
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Belgium5 Apr 2025Doubles Open · Men1:13:03 PB404/898Beat 55%
↑ 177 days after Amsterdam 2024, with Tycho Seetsen 1:12 better than the field Why ↓Close ↑
1:12 better than the field: 4:07 faster on the clock, against 2:55 faster for everyone.
The fieldCompare these two →2:55 faster This pair4:07 faster -
Amsterdam10 Oct 2024Doubles Open · Men1:17:10480/855Beat 44%
↑ 187 days after Rotterdam 2024, with Tycho Seetsen 5:51 better than the field Why ↓Close ↑
9:20 faster on the clock, and the race was 3:29 faster for everyone, so 5:51 of it was this pair.
The fieldCompare these two →3:29 faster This pair9:20 faster -
Rotterdam6 Apr 2024Doubles Open · Men1:26:30577/722Beat 20%