Progress against the field
Between Rotterdam 2025 and Maastricht 2025, Sien Heylen pulled 7:48 ahead of the field.
The clock says 8:42 faster, but the races themselves got 0:54 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.
Every race
11 races · 10 events
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Maastricht19 Sep 2026Doubles Open · Mixed1:03:45 PB30/687Beat 96%
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Barcelona14 May 2026Doubles Open · Mixed1:04:4219/615Beat 97%
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Rotterdam15 Apr 2026Relay · Women57:201/84Beat 99%
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Mechelen26 Mar 2026Doubles Open · Women1:12:3773/1017Beat 93%
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Mechelen26 Mar 2026Doubles Pro · Women1:02:12 PB5/133Beat 96%
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Amsterdam21 Jan 2026Doubles Pro · Women1:02:1510/183Beat 95%
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Gent12 Dec 2025Doubles Open · Women1:03:13 PB2/882Beat 100%
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Maastricht19 Sep 2025Individual Open · Women1:12:24 PB18/590Beat 97%
↑ 204 days after Rotterdam 2025 7:48 better than the field Why ↓Close ↑
7:48 better than the field: 8:42 faster on the clock, against 0:54 faster for everyone.
The fieldCompare these two →0:54 faster This athlete8:42 faster -
Riga31 May 2025Doubles Open · Mixed1:09:3943/264Beat 84%
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Belgium5 Apr 2025Doubles Open · Mixed1:11:04114/722Beat 84%
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Rotterdam27 Feb 2025Individual Open · Women1:21:0670/506Beat 86%