Gianmario Oliviero ha enfrentado a 42 oponentes a lo largo de su carrera.

Player Team(s) Games
Giovanni Allodi 1
Fernando Alonso 1
Nikolaos Andreadis 1
Gabriele Benetti 1
Nedim Buza 1
Antreas Christodoulou 1
Enrique Cortes 1
Bruno Diatta 1
Atif Durak 1
Mahir Ferhatbegovic 1
Simone Fontecchio 1
Matteo Ghiacci 1
Athanasios Giannakis 1
Antonis Gkavezos 1
Sokratis Gkelios 1
Ruben Guerrero 1
Ruben Gutierrez 1
Jose Jimenez 1
Kenan Karahodzic 1
Konstantinos Kousiantzas 1
Ioannis Kouzeloglou 1
Giacomo Luppi 1
Francesco Magagnoli 1
Davide Martelli 1
Samuel Montoro 1
Dimitrios Nikolaou 1
Aleksej Nikolic 1
Adam Pechacek 1
Dejan Petkovic 1
Victor Ruiz 1
Domantas Sabonis 1
Doko Salic 1
Michele Sitta 1
Faris Smajlovic 1
Mo Soluade 1
Andrea Tassinari 1
Fotis Thomaidis 1
Filippo Tinti 1
Tommaso Torriglia 1
Christos Venetopoulos 1
Adi Zahiragic 1
Paris Zaimi 1