Roberto Alvarez ha enfrentado a 42 oponentes a lo largo de su carrera.

Player Team(s) Games
Shigeaki Abe
Japan (Olympics)
1
Antonio Ayala
Mexico (Olympics)
1
Renzo Bariviera
Italy (Olympics)
1
Gianni Bertolotti
Italy (Olympics)
1
Ivan Bisson
Italy (Olympics)
1
Giuseppe Brumatti
Italy (Olympics)
1
Samuel Campis
Mexico (Olympics)
1
Nobuo Chigusa
Japan (Olympics)
1
Kresimir Cosic
Yugoslavia (Olympics)
1
Drazen Dalipagic
Yugoslavia (Olympics)
1
Mirza Delibasic
Yugoslavia (Olympics)
1
Fabrizio Della Fiori
Italy (Olympics)
1
Yutaka Fujimoto
Japan (Olympics)
1
Jesus Garcia
Mexico (Olympics)
1
Blagoja Georgijevski
Yugoslavia (Olympics)
1
Arturo Guerrero
Mexico (Olympics)
1
Hideki Hamaguchi
Japan (Olympics)
1
Giulio Iellini
Italy (Olympics)
1
Vinko Jelovac
Yugoslavia (Olympics)
1
Zeljko Jerkov
Yugoslavia (Olympics)
1
Dragan Kicanovic
Yugoslavia (Olympics)
1
Norihiko Kitahara
Japan (Olympics)
1
Kiyohide Kuwata
Japan (Olympics)
1
Pierluigi Marzorati
Italy (Olympics)
1
Dino Meneghin
Italy (Olympics)
1
Satoshi Mori
Japan (Olympics)
1
Gabriel Nava
Mexico (Olympics)
1
Hirofumi Numata
Japan (Olympics)
1
Manuel Raga
Mexico (Olympics)
1
Carlo Recalcati
Italy (Olympics)
1
Anastasio Reyes
Mexico (Olympics)
1
Hector Rodriguez
Mexico (Olympics)
1
Manuel Saenz
Mexico (Olympics)
1
Fumio Saito
Japan (Olympics)
1
Luigi Serafini
Italy (Olympics)
1
Shigeto Shimizu
Japan (Olympics)
1
Zoran Slavnic
Yugoslavia (Olympics)
1
Damir Solman
Yugoslavia (Olympics)
1
Luciano Vendemini
Italy (Olympics)
1
Shoji Yuki
Japan (Olympics)
1
Marino Zanatta
Italy (Olympics)
1
Rajko Zizic
Yugoslavia (Olympics)
1