Progress against the field
Between Poznan 2025 and Berlin 2026, Sandro Koslow pulled 3:49 ahead of the field.
The clock says 4:31 faster, but the races themselves got 0:42 quicker for everyone.
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 Individual Open · Men, the one raced most; every comparison is in the list below.
Every race
6 races · 6 events
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Hamburg28 Oct 2026Doubles Open · Men1:15:34126/398Beat 68%
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Berlin22 May 2026Individual Open · Men1:13:29 PB129/993Beat 87%
↑ 160 days after Poznan 2025 3:49 better than the field Why ↓Close ↑
3:49 better than the field: 4:31 faster on the clock, against 0:42 faster for everyone.
The fieldCompare these two →0:42 faster This athlete4:31 faster -
Poznan13 Dec 2025Individual Open · Men1:18:00319/1184Beat 73%
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Berlin16 May 2025Doubles Open · Men1:11:17 PB749/1325Beat 44%
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Cologne10 Apr 2025Individual Open · Men1:21:56473/1182Beat 60%
↑ 159 days after Hamburg 2024 6:20 worse than the field Why ↓Close ↑
3:09 slower on the clock in a race that was 3:11 faster for everyone: 6:20 lost to the field.
The fieldCompare these two →3:11 faster This athlete3:09 slower -
Hamburg2 Nov 2024Individual Open · Men1:18:47410/1248Beat 67%