Progress against the field
Between Gent 2025 and Amsterdam 2026, Sabine Bikker and Roberto Giovanni Van Valkenburg lost 2:40 to the field.
The clock says 0:59 slower, but the races themselves got 1:41 quicker for everyone.
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 Roberto Giovanni Van Valkenburg, the one raced most; every comparison is in the list below.
Every race
6 races · 6 events
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Maastricht19 Sep 2026Doubles Open · Mixed1:16:30207/687Beat 70%
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Amsterdam21 Jan 2026Doubles Open · Mixed1:16:47214/506Beat 58%
↑ 40 days after Gent 2025, with Roberto Giovanni Van Valkenburg 2:40 worse than the field Why ↓Close ↑
0:59 slower on the clock in a race that was 1:41 faster for everyone: 2:40 lost to the field.
The fieldCompare these two →1:41 faster This pair0:59 slower -
Gent12 Dec 2025Doubles Open · Mixed1:15:48269/863Beat 69%
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Maastricht19 Sep 2025Doubles Open · Mixed1:14:2865/364Beat 82%
↑ 204 days after Rotterdam 2025, with Rob Van Valkenburg 0:30 better than the field Slower on the clock, ahead of the field Why ↓Close ↑
1:17 slower on the clock in a race that was 1:47 slower for everyone: 0:30 gained on the field, which the clock hides.
The fieldCompare these two →1:47 slower This pair1:17 slower -
Rotterdam27 Feb 2025Doubles Open · Mixed1:13:11 PB118/707Beat 83%
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Frankfurt14 Dec 2024Doubles Open · Mixed1:16:56360/861Beat 58%