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Kosei YAMAGATA
Half Marathon
10,000m
5000m
 Japan
Born31 AUG 2004 (21)
Kosei's code15128176
Personal bests
resultResult
1:07:14
dateDate
26 JAN 2025
scoreScore
913
competitionCompetition & venue
Osaka Half Marathon Course, Osaka (JPN)
resultResult
31:39.21
dateDate
22 MAY 2024
scoreScore
819
competitionCompetition & venue
Takebishi Stadium, Kyoto (JPN)
resultResult
15:13.95
dateDate
17 OCT 2024
scoreScore
768
competitionCompetition & venue
Nagai Stadium No. 2, Osaka (JPN)
* Not legal
Season’s bests (2025)
* Not legal
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