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Cosmo JOHNSON
400mH
400m sh
 Great Britain & N.I.
Born2005
Cosmo's code15063563
World Ranking
#24923 Men's overall ranking
Personal bests
resultResult
53.37
dateDate
20 MAR 2026
scoreScore
969
competitionCompetition & venue
Tom Samuels Track, Richmond, KY (USA)
resultResult
49.99
dateDate
10 FEB 2024
scoreScore
919
competitionCompetition & venue
National Indoor Athletics Centre, Sheffield (GBR) (i)
resultResult
49.94
dateDate
08 JUN 2024
scoreScore
862
competitionCompetition & venue
Sports Village Track, Middlesbrough (GBR)
* Not legal
Season’s bests (2026)
* Not legal
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