Progress against the field
Jan Russcher has dropped 20:13 behind the field from Rotterdam 2023 to Belgium 2025.
Over the same races everyone got 6:30 quicker, so 13:43 slower on the clock looks better than it was.
The longest gap between two races compared here, 518 days between Amsterdam 2023 and Belgium 2025, cost 16:42 on 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
3 races · 3 events
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Belgium5 Apr 2025Individual Open · Men1:45:531438/1638Beat 12%
↑ 518 days after Amsterdam 2023 16:42 worse than the field Why ↓Close ↑
16:42 behind the field: 12:49 slower on the clock, against 3:53 faster for everyone.
The fieldCompare these two →3:53 faster This athlete12:49 slower -
Amsterdam4 Nov 2023Individual Open · Men1:33:04638/1079Beat 41%
↑ 168 days after Rotterdam 2023 3:31 worse than the field Why ↓Close ↑
3:31 behind the field: 0:54 slower on the clock, against 2:37 faster for everyone.
The fieldCompare these two →2:37 faster This athlete0:54 slower -
Rotterdam20 May 2023Individual Open · Men1:32:10 PB342/575Beat 41%