Progress against the field
From Amsterdam 2024 to Utrecht 2025, the field gained 15:33 on Bas de Groot.
Over the same races everyone got 0:49 quicker, so 14:44 slower 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.
Every race
3 races · 3 events
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Heerenveen14 May 2026Doubles Open · Men1:33:45 PB479/494Beat 3%
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Utrecht28 Nov 2025Individual Open · Men2:05:401284/1337Beat 4%
↑ 414 days after Amsterdam 2024 15:33 worse than the field Why ↓Close ↑
15:33 behind the field: 14:44 slower on the clock, against 0:49 faster for everyone.
The fieldCompare these two →0:49 faster This athlete14:44 slower -
Amsterdam10 Oct 2024Individual Open · Men1:50:56 PB1422/1539Beat 8%