Progress against the field
From Rotterdam 2024 to Rotterdam 2025, Koen Istha got 2:15 faster than the field.
The clock says 7:02 faster, but the races themselves got 4:47 quicker for everyone.
187 days between Rotterdam 2024 and Amsterdam 2024 is the longest gap compared here, and the second race was 3:29 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. The summary above covers Individual Pro · Men, the one raced most; every comparison is in the list below.
Every race
10 races · 9 events
-
Utrecht28 Nov 2025Doubles Open · Mixed1:11:3477/701Beat 89%
-
Utrecht28 Nov 2025Individual Open · Men1:11:36 PB90/1337Beat 93%
↑ 1133 days after Amsterdam 2022 0:10 better than the field Why ↓Close ↑
0:10 better than the field: 3:25 faster on the clock, against 3:15 faster for everyone.
The fieldCompare these two →3:15 faster This athlete3:25 faster -
Belgium5 Apr 2025Individual Pro · Men1:10:1245/203Beat 78%
-
Rotterdam27 Feb 2025Individual Pro · Men1:09:56 PB13/196Beat 93%
↑ 140 days after Amsterdam 2024 1:14 worse than the field Faster on the clock, behind the field Why ↓Close ↑
0:43 faster on the clock, yet the race was 1:57 faster for everyone, so 1:14 was lost on the field.
The fieldCompare these two →1:57 faster This athlete0:43 faster -
Amsterdam10 Oct 2024Individual Pro · Men1:10:3923/177Beat 87%
↑ 187 days after Rotterdam 2024 3:29 better than the field Why ↓Close ↑
3:29 better than the field: 6:19 faster on the clock, against 2:50 faster for everyone.
The fieldCompare these two →2:50 faster This athlete6:19 faster -
Rotterdam6 Apr 2024Individual Pro · Men1:16:5836/149Beat 76%
-
Amsterdam4 Nov 2023Doubles Open · Mixed1:07:29 PB12/283Beat 96%
-
Rotterdam20 May 2023Individual Pro · Men1:23:1317/53Beat 68%
-
Amsterdam22 Oct 2022Individual Open · Men1:15:0169/561Beat 88%
-
World Championships NiceDate unknownDoubles Pro · Mixed1:12:35 PB257/297Beat 14%