Progress against the field
Between Amsterdam 2026 and Rotterdam 2026, Jonthe Grotenhuis and Susanne Lafebre kept pace with the field.
Over the same races everyone got 0:50 quicker, so 1:02 faster on the clock looks better than it was.
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.
Every race
4 races · 4 events
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Rotterdam15 Apr 2026Doubles Open · Mixed1:02:16 PB15/544Beat 97%
↑ 84 days after Amsterdam 2026, with Susanne Lafebre 0:12 better than the field Why ↓Close ↑
1:02 faster on the clock, and the race was 0:50 faster for everyone, so 0:12 of it was this pair.
The fieldCompare these two →0:50 faster This pair1:02 faster -
Amsterdam21 Jan 2026Doubles Open · Mixed1:03:1877/1206Beat 94%
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Paris22 Oct 2025Individual Open · Men1:13:59230/1397Beat 84%
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Heerenveen9 May 2025Individual Open · Men1:12:25 PB178/1217Beat 85%