Progress against the field
Casper Streefkerk has gained 1:04 on the field from Rotterdam 2024 to Rotterdam 2026.
The clock says 10:20 faster, but the races themselves got 9:16 quicker for everyone.
601 days between Rotterdam 2024 and Utrecht 2025 is the longest gap compared here, and the second race was 2:46 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 · 4 events
-
Rotterdam15 Apr 2026Individual Open · Men1:23:56 PB231/556Beat 59%
↑ 138 days after Utrecht 2025 1:42 worse than the field Faster on the clock, behind the field Why ↓Close ↑
3:37 faster on the clock, yet the race was 5:19 faster for everyone, so 1:42 was lost on the field.
The fieldCompare these two →5:19 faster This athlete3:37 faster -
Utrecht28 Nov 2025Individual Open · Men1:27:33634/1337Beat 53%
↑ 601 days after Rotterdam 2024 2:46 better than the field Why ↓Close ↑
6:43 faster on the clock, and the race was 3:57 faster for everyone, so 2:46 of it was this athlete.
The fieldCompare these two →3:57 faster This athlete6:43 faster -
Rotterdam6 Apr 2024Individual Open · Men1:34:16805/1380Beat 42%
-
Rotterdam6 Apr 2024Relay · Men1:05:186/10Beat 40%
-
Rotterdam20 May 2023Doubles Open · Men1:28:54 PB191/249Beat 23%