Progress against the field
Fonghwa Hallatu and Eunice Zefrin have gained 0:47 on the field from Heerenveen 2025 to Heerenveen 2026.
Over the same races everyone got 5:26 quicker, so 6:13 faster on the clock looks better than it was.
The longest gap between two races compared here, 257 days between Heerenveen 2025 and Amsterdam 2026, still ended 3:23 ahead of the field.
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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Valencia17 Oct 2026Doubles Open · Women1:32:37491/724Beat 32%
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Maastricht19 Sep 2026Doubles Open · Women1:33:19416/708Beat 41%
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Heerenveen14 May 2026Doubles Open · Women1:28:57417/737Beat 43%
↑ 113 days after Amsterdam 2026, with Eunice Zefrin 2:36 worse than the field Why ↓Close ↑
0:05 slower on the clock in a race that was 2:31 faster for everyone: 2:36 lost to the field.
The fieldCompare these two →2:31 faster This pair0:05 slower -
Rotterdam15 Apr 2026Doubles Open · Mixed1:18:54 PB373/1047Beat 64%
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Mechelen26 Mar 2026Doubles Open · Mixed1:25:15296/424Beat 30%
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Amsterdam21 Jan 2026Doubles Open · Women1:28:52667/1030Beat 35%
↑ 257 days after Heerenveen 2025, with Eunice Zefrin 3:23 better than the field Why ↓Close ↑
3:23 better than the field: 6:18 faster on the clock, against 2:55 faster for everyone.
The fieldCompare these two →2:55 faster This pair6:18 faster -
Gent12 Dec 2025Doubles Open · Women1:24:25 PB359/882Beat 59%
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Gent12 Dec 2025Relay · Mixed1:17:4419/49Beat 61%
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Utrecht28 Nov 2025Doubles Open · Mixed1:19:27224/701Beat 68%
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Maastricht19 Sep 2025Individual Open · Women1:38:50 PB366/590Beat 38%
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Heerenveen9 May 2025Doubles Open · Women1:35:10409/566Beat 28%