Progress against the field
Between Rotterdam 2024 and Heerenveen 2026, Kanji Yamazaki lost 8:57 to the field.
The clock says 7:57 faster, but the races themselves got 16:54 quicker for everyone.
The longest gap between two races compared here, 531 days between Rotterdam 2024 and Maastricht 2025, cost 10:58 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. The summary above covers Individual Open · Men, the one raced most; every comparison is in the list below.
Every race
13 races · 11 events
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Maastricht19 Sep 2026Individual Pro · Men1:04:17 PB48/399Beat 88%
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Heerenveen14 May 2026Individual Open · Men59:35 PB8/966Beat 99%
↑ 113 days after Amsterdam 2026 2:11 worse than the field Faster on the clock, behind the field Why ↓Close ↑
0:22 faster on the clock looks better than it was: the race was 2:33 faster for everyone, which leaves this 2:11 behind the field.
The fieldCompare these two →2:33 faster This athlete0:22 faster -
Rotterdam15 Apr 2026Doubles Open · Men58:04 PB13/674Beat 98%
↑ 208 days after Maastricht 2025, with Patrick Brijbag 1:15 better than the field Why ↓Close ↑
1:15 better than the field: 4:46 faster on the clock, against 3:31 faster for everyone.
The fieldCompare these two →3:31 faster This pair4:46 faster -
Amsterdam21 Jan 2026Individual Open · Men59:578/1620Beat 100%
↑ 40 days after Gent 2025 1:08 worse than the field Faster on the clock, behind the field Why ↓Close ↑
1:53 faster on the clock, yet the race was 3:01 faster for everyone, so 1:08 was lost on the field.
The fieldCompare these two →3:01 faster This athlete1:53 faster -
Gent12 Dec 2025Individual Open · Men1:01:5023/1428Beat 98%
↑ 84 days after Maastricht 2025 5:20 better than the field Why ↓Close ↑
10:55 faster on the clock, and the race was 5:35 faster for everyone, so 5:20 of it was this athlete.
The fieldCompare these two →5:35 faster This athlete10:55 faster -
Maastricht19 Sep 2025Doubles Open · Men1:02:5077/821Beat 91%
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Maastricht19 Sep 2025Individual Open · Men1:12:45126/1352Beat 91%
↑ 531 days after Rotterdam 2024 10:58 worse than the field Why ↓Close ↑
5:13 slower on the clock in a race that was 5:45 faster for everyone: 10:58 lost to the field.
The fieldCompare these two →5:45 faster This athlete5:13 slower -
Amsterdam10 Oct 2024Doubles Open · Mixed1:11:41 PB98/618Beat 84%
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Amsterdam10 Oct 2024Individual Pro · Men1:17:4552/177Beat 71%
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Rotterdam6 Apr 2024Individual Open · Men1:07:3224/1380Beat 98%
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Frankfurt9 Dec 2023Individual Open · Men1:09:4988/843Beat 90%
↑ 35 days after Amsterdam 2023 2:28 better than the field Why ↓Close ↑
2:47 faster on the clock, and the race was 0:19 faster for everyone, so 2:28 of it was this athlete.
The fieldCompare these two →0:19 faster This athlete2:47 faster -
Amsterdam4 Nov 2023Individual Open · Men1:12:3667/1079Beat 94%
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World Championships NiceDate unknownIndividual Pro · Men1:14:55450/830Beat 46%