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Athletics - Jan Trefny
Switzerland
Jan Trefny is an athlete who competes internationally for Switzerland. His last result is the 16th place for the men's decathlon in the World Championships 1991. He competes in decathlon.
- Results
- Identity
- Prize list
Resultats
Jan Trefny - Results
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- 1991
Event Discipline Pos Date 
World ChampionshipsMen's Decathlon 16 30/08/1991