Hiroki KOSAKA
400m
300m
 Japan
Born31 JUL 2005 (20)
Hiroki's code15008142
Current World Rankings
#1549 Men's 400m
Personal bests
resultResult
3:08.62
dateDate
14 SEP 2025
scoreScore
1067
competitionCompetition & venue
Takebishi Stadium, Kyoto (JPN)
resultResult
48.19
dateDate
28 SEP 2025
scoreScore
969
competitionCompetition & venue
Hakatanomori Athletic Stadium, Fukuoka (JPN)
resultResult
34.68
dateDate
14 AUG 2022
scoreScore
928
competitionCompetition & venue
Hakatanomori Athletic Stadium, Fukuoka (JPN)
resultResult
22.49
dateDate
16 APR 2022
scoreScore
837
resultResult
22.74
dateDate
10 AUG 2025
scoreScore
827
* Not legal
Season’s bests (2025)
* Not legal
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