Robert Okonkwo ha enfrentado a 51 oponentes a lo largo de su carrera.

Player Team(s) Games
Alberto Angulo
Spain (World Cup)
1
Christopher Anstey
Australia (World Cup)
1
Seung-Gyun Choo
South Korea (World Cup)
1
Esteban De La Fuente
Argentina (World Cup)
1
Ignacio De Miguel
Spain (World Cup)
1
Michael Dorsey
Japan (World Cup)
1
Roberto Duenas
Spain (World Cup)
1
Juan Alberto Espil
Argentina (World Cup)
1
Scott Fisher
Australia (World Cup)
1
Satoru Furuta
Japan (World Cup)
1
Andrew Gaze
Australia (World Cup)
1
Manu Ginobili
Argentina (World Cup)
1
Makoto Hasegawa
Japan (World Cup)
1
Shane Heal
Australia (World Cup)
1
Alberto Herreros
Spain (World Cup)
1
Carlos Jimenez
Spain (World Cup)
1
Hyun Joo-yup
South Korea (World Cup)
1
Dong-hee Kang
South Korea (World Cup)
1
Hee-Sun Kim
South Korea (World Cup)
1
Byong-Chul Kim
South Korea (World Cup)
1
Sung-Chul Kim
South Korea (World Cup)
1
Joo Sung Kim
South Korea (World Cup)
1
Moon Kyung-eun
South Korea (World Cup)
1
Sang-min Lee
South Korea (World Cup)
1
Samuel Mackinnon
Australia (World Cup)
1
Brett Maher
Australia (World Cup)
1
Marcelo Milanesio
Argentina (World Cup)
1
Makoto Minamiyama
Japan (World Cup)
1
Alejandro Montecchia
Argentina (World Cup)
1
Marcelo Nicola
Argentina (World Cup)
1
Fabricio Oberto
Argentina (World Cup)
1
Juan Antonio Orenga
Spain (World Cup)
1
Takehiko Orimo
Japan (World Cup)
1
Diego Osella
Argentina (World Cup)
1
Jose antonio Paraiso
Spain (World Cup)
1
Alfonso Reyes
Spain (World Cup)
1
Ignacio Rodilla
Spain (World Cup)
1
Nacho Rodriguez
Spain (World Cup)
1
Paul Rogers
Australia (World Cup)
1
Tony Ronaldson
Australia (World Cup)
1
Kenichi Sako
Japan (World Cup)
1
Satoshi Sakumoto
Japan (World Cup)
1
Pepe Sanchez
Argentina (World Cup)
1
Hugo Sconochini
Argentina (World Cup)
1
Jang Hoon Seo
South Korea (World Cup)
1
Carlos Simoni
Argentina (World Cup)
1
Andrew Vlahov
Australia (World Cup)
1
Ruben Wolkowyski
Argentina (World Cup)
1
Akifumi Yamasaki
Japan (World Cup)
1
Kyung-Min Yang
South Korea (World Cup)
1
Takeshi Yuki
Japan (World Cup)
1