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Koshi OTSUKI
400m
400mH
 Japan
Born24 AUG 2009 (16)
Koshi's code15253593
Personal bests
resultResult
51.16
dateDate
24 AUG 2025
scoreScore
791
competitionCompetition & venue
Konoike Athletics Stadium, Nara (JPN)
resultResult
57.88
dateDate
19 SEP 2025
scoreScore
772
competitionCompetition & venue
Kimiidera Park Athletic Field, Wakayama (JPN)
resultResult
15.61
dateDate
20 SEP 2025
scoreScore
0
* Not legal
Season’s bests (2025)
* Not legal
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