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Japan
Ryoji Sononaka is a swimmer who competes internationally for Japan. His last result is the 18th place for the men's 1500 m freestyle - heat during the World Championships 2009. He competes in 1500 m freestyle and 800 m freestyle.
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Event | Discipline | Pos | Date |
---|---|---|---|
World Championships | Men's 1500 m freestyle - Heat | 18 | 01/08/2009 |
World Championships | Men's 800 m freestyle - Heat | 21 | 28/07/2009 |