Progress against the field
Between Amsterdam 2026 and Maastricht 2026, Bo Grievink lost 0:19 to the field.
The races themselves barely changed, so 0:19 slower on the clock is the real picture.
The largest gain on the field came from Stockholm 2026 → Maastricht 2026: 12:26 in 93 days.
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 · Women, the one raced most; every comparison is in the list below.
Every race
15 races · 10 events
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Maastricht19 Sep 2026Individual Pro · Women1:05:529/160Beat 94%
↑ 93 days after Stockholm 2026 12:26 better than the field Why ↓Close ↑
The race was 0:11 slower for everyone and the clock still says 12:15 faster: 12:26 gained on the field.
The fieldCompare these two →0:11 slower This athlete12:15 faster -
Stockholm18 Jun 2026Doubles Pro · Women1:09:12318/689Beat 54%
↑ 84 days after Mechelen 2026, with Annette De Wolf 2:32 worse than the field Why ↓Close ↑
4:34 slower on the clock in a race that was 2:02 slower for everyone: 2:32 lost to the field.
The fieldCompare these two →2:02 slower This pair4:34 slower -
Stockholm18 Jun 2026Individual Pro · Women1:18:07503/751Beat 33%
↑ 35 days after Heerenveen 2026 8:41 worse than the field Why ↓Close ↑
8:41 behind the field: 10:39 slower on the clock, against 1:58 slower for everyone.
The fieldCompare these two →1:58 slower This athlete10:39 slower -
Heerenveen14 May 2026Relay · Mixed59:072/66Beat 97%
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Heerenveen14 May 2026Doubles Open · Mixed1:00:00 PB13/461Beat 97%
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Heerenveen14 May 2026Individual Pro · Women1:07:2811/155Beat 93%
↑ 29 days after Rotterdam 2026 2:24 worse than the field Why ↓Close ↑
0:25 slower on the clock in a race that was 1:59 faster for everyone: 2:24 lost to the field.
The fieldCompare these two →1:59 faster This athlete0:25 slower -
Rotterdam15 Apr 2026Individual Pro · Women1:07:035/128Beat 96%
↑ 84 days after Amsterdam 2026 1:40 worse than the field Why ↓Close ↑
1:30 slower on the clock in a race that was 0:10 faster for everyone: 1:40 lost to the field.
The fieldCompare these two →0:10 faster This athlete1:30 slower -
Mechelen26 Mar 2026Doubles Open · Mixed1:00:0715/424Beat 97%
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Mechelen26 Mar 2026Doubles Pro · Women1:04:3816/133Beat 88%
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Amsterdam21 Jan 2026Doubles Pro · Women1:03:28 PB11/183Beat 94%
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Amsterdam21 Jan 2026Individual Pro · Women1:05:33 PB5/128Beat 96%
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Frankfurt12 Dec 2025Individual Pro · Women1:05:467/174Beat 96%
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Utrecht28 Nov 2025Individual Pro · Women1:08:524/113Beat 97%
↑ 70 days after Maastricht 2025 4:11 worse than the field Why ↓Close ↑
4:11 behind the field: 0:14 slower on the clock, against 3:57 faster for everyone.
The fieldCompare these two →3:57 faster This athlete0:14 slower -
Maastricht19 Sep 2025Individual Pro · Women1:08:387/109Beat 94%
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Heerenveen9 May 2025Individual Pro · Women1:11:328/105Beat 92%