Progress against the field
Between Anaheim 2024 and New York 2026, Christopher Masui pulled 4:33 ahead of the field.
The clock says 7:39 faster, but the races themselves got 3:06 quicker for everyone.
370 days between Anaheim 2024 and Anaheim 2025 is the longest gap compared here, and the second race was 17:49 better than 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. The summary above covers Individual Pro · Men, the one raced most; every comparison is in the list below.
Every race
7 races · 6 events
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New York28 May 2026Individual Pro · Men1:49:10391/455Beat 14%
↑ 119 days after Phoenix 2026 6:32 worse than the field Why ↓Close ↑
7:54 slower on the clock in a race that was 1:22 slower for everyone: 6:32 lost to the field.
The fieldCompare these two →1:22 slower This athlete7:54 slower -
Phoenix29 Jan 2026Individual Pro · Men1:41:16564/634Beat 11%
↑ 48 days after Anaheim 2025 6:44 worse than the field Why ↓Close ↑
3:00 slower on the clock in a race that was 3:44 faster for everyone: 6:44 lost to the field.
The fieldCompare these two →3:44 faster This athlete3:00 slower -
Anaheim12 Dec 2025Individual Open · Men1:32:57 PB773/1835Beat 58%
↑ 314 days after Las Vegas 2025 7:19 better than the field Why ↓Close ↑
8:54 faster on the clock, and the race was 1:35 faster for everyone, so 7:19 of it was this athlete.
The fieldCompare these two →1:35 faster This athlete8:54 faster -
Anaheim12 Dec 2025Individual Pro · Men1:38:16 PB220/265Beat 17%
↑ 370 days after Anaheim 2024 17:49 better than the field Why ↓Close ↑
18:33 faster on the clock, and the race was 0:44 faster for everyone, so 17:49 of it was this athlete.
The fieldCompare these two →0:44 faster This athlete18:33 faster -
Las Vegas1 Feb 2025Individual Open · Men1:41:51322/462Beat 30%
↑ 258 days after Gainful Anaheim 2024 4:14 worse than the field Why ↓Close ↑
4:14 behind the field: 3:42 slower on the clock, against 0:32 faster for everyone.
The fieldCompare these two →0:32 faster This athlete3:42 slower -
Anaheim7 Dec 2024Individual Pro · Men1:56:49133/143Beat 7%
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Gainful Anaheim19 May 2024Individual Open · Men1:38:09396/623Beat 36%