Progress against the field
Between Rotterdam 2025 and Rotterdam 2026, Niels Siesling pulled 5:57 ahead of the field.
The clock says 14:00 faster, but the races themselves got 8:03 quicker for everyone.
274 days between Rotterdam 2025 and Utrecht 2025 is the longest gap compared here, and the second race was 10:02 better than 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
5 races · 5 events
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Rotterdam15 Apr 2026Individual Open · Men1:09:39 PB101/1192Beat 92%
↑ 84 days after Amsterdam 2026 1:00 worse than the field Faster on the clock, behind the field Why ↓Close ↑
1:08 faster on the clock, yet the race was 2:08 faster for everyone, so 1:00 was lost on the field.
The fieldCompare these two →2:08 faster This athlete1:08 faster -
Amsterdam21 Jan 2026Individual Open · Men1:10:47207/1620Beat 87%
↑ 54 days after Utrecht 2025 3:05 worse than the field Faster on the clock, behind the field Why ↓Close ↑
2:02 faster on the clock, yet the race was 5:07 faster for everyone, so 3:05 was lost on the field.
The fieldCompare these two →5:07 faster This athlete2:02 faster -
Utrecht28 Nov 2025Individual Open · Men1:12:49121/1337Beat 91%
↑ 274 days after Rotterdam 2025 10:02 better than the field Why ↓Close ↑
10:50 faster on the clock, and the race was 0:48 faster for everyone, so 10:02 of it was this athlete.
The fieldCompare these two →0:48 faster This athlete10:50 faster -
Maastricht19 Sep 2025Doubles Open · Men1:06:16 PB163/821Beat 80%
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Rotterdam27 Feb 2025Individual Open · Men1:23:39529/1283Beat 59%