Progress against the field
Between Utrecht 2025 and Maastricht 2026, Perry Boom and Lotte Broekhuijsen pulled 4:47 ahead of the field.
The clock says 9:00 faster, but the races themselves got 4:13 quicker for everyone.
The largest gain on the field came from Utrecht 2025 → Heerenveen 2026: 4:47 in 167 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 Doubles Open · Mixed, with Lotte Broekhuijsen, the one raced most; every comparison is in the list below.
Every race
12 races · 8 events
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Hamburg28 Oct 2026Individual Open · Men1:14:52 PB195/1103Beat 82%
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Hamburg28 Oct 2026Doubles Open · Mixed1:19:59116/232Beat 50%
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Maastricht19 Sep 2026Doubles Open · Mixed1:17:10224/687Beat 67%
↑ 128 days after Heerenveen 2026, with Lotte Broekhuijsen 0:00 better than the field Why ↓Close ↑
0:53 slower on the clock, and the race was 0:53 slower for everyone. Whatever changed, it changed for all of them.
The fieldCompare these two →0:53 slower This pair0:53 slower -
Tenerife4 Sep 2026Individual Pro · Men1:27:03162/271Beat 40%
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Heerenveen14 May 2026Doubles Open · Men1:02:06 PB47/535Beat 91%
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Heerenveen14 May 2026Doubles Open · Mixed1:16:17 PB281/808Beat 65%
↑ 167 days after Utrecht 2025, with Lotte Broekhuijsen 4:47 better than the field Why ↓Close ↑
9:53 faster on the clock, and the race was 5:06 faster for everyone, so 4:47 of it was this pair.
The fieldCompare these two →5:06 faster This pair9:53 faster -
Rotterdam15 Apr 2026Doubles Pro · Men1:03:50 PB113/385Beat 71%
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Amsterdam21 Jan 2026Doubles Open · Men1:07:54288/994Beat 71%
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Amsterdam21 Jan 2026Individual Pro · Men1:12:46 PB34/107Beat 68%
↑ 54 days after Utrecht 2025 11:25 better than the field Why ↓Close ↑
11:25 better than the field: 16:01 faster on the clock, against 4:36 faster for everyone.
The fieldCompare these two →4:36 faster This athlete16:01 faster -
Utrecht28 Nov 2025Doubles Open · Mixed1:26:10399/701Beat 43%
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Utrecht28 Nov 2025Individual Pro · Men1:28:4760/102Beat 41%
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Maastricht19 Sep 2025Doubles Open · Men1:28:11300/354Beat 15%