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Kotatsu YAMAGUCHI
400m
300m
 Japan
Born01 MAY 2008 (17)
Kotatsu's code15184483
Personal bests
resultResult
48.66
dateDate
18 OCT 2025
scoreScore
939
competitionCompetition & venue
JIT Recycled Ink Stadium, Kofu (JPN)
resultResult
35.12
dateDate
19 JUL 2025
scoreScore
892
competitionCompetition & venue
Komazawa Olympic Park Athletic Stadium, Tokyo (JPN)
* Not legal
Season’s bests (2025)
* Not legal
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