|Olympic medal record|
|Representing a Mixed team|
Petrokokkinos was defeated in the first round of the singles tournament by fellow Greek Evangelos Rallis. This put him in a six-way tie for eighth (last) place among the thirteen man field. In the doubles tournament, Petrokokkinos again faced Rallis in the first round. This time, Petrokokkinos and his partner Dionysios Kasdaglis of Egypt defeated Rallis and his partner Konstantinos Paspatis. Petrokokkinos and Kasdaglis faced Edwin Flack of Australia and George S. Robertson of Great Britain and Ireland in the semifinals, again winning the match to advance to the final. There, they met Irishman John Pius Boland and German Friedrich Traun, to whom they lost to place second.
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