Robert Geier ha enfrentado a 80 oponentes a lo largo de su carrera.

Player Team(s) Games
Marvin Adu 1
Ismet Akpinar 1
Paul Albrecht 1
Ole Angerstein 1
Torvoris Baker 1
Romeo Bakoa
BSV Wulfen (GER-3)
1
Hendrik Bellscheidt
BSV Wulfen (GER-3)
1
Marvin Boadu 2
Fabian Boeke 2
Adrian Bowie 1
Steve Briggs
BSV Wulfen (GER-3)
1
Fabian Brutting 1
Terry Bryant
Dorsten (GER-3)
1
John Cadmus
Dorsten (GER-3)
1
Julius Ducker 1
Marco Dunzel
Dorsten (GER-3)
1
Josef Eichler 1
Chadwick Gray 1
Johannes Grote 1
Moritz Gruber 1
Christoph Hackenesch 1
Rouven Hanig
BSV Wulfen (GER-3)
1
Kai Hanig 1
Anselm Hartmann 1
Chris Heinrich 1
Felix Heise 1
Florian Heit
Dorsten (GER-3)
1
Brandon Hogg 1
Davey Hopkins 2
Nino Janoschek
BSV Wulfen (GER-3)
1
Tim Jarmusz 1
Dominique Johnson 1
Harold August Johnston 2
Konstantin Konga 1
Dimitri Kreis 1
Stephan Kreutzer 1
Albert Kuppe 1
Jonas Laatzen 2
Tobias Lange 2
Brandon Larrieu 1
Tom Lipke
Dorsten (GER-3)
1
Philipp Mazur
BSV Wulfen (GER-3)
1
Deon McDuffie
Dorsten (GER-3)
1
Lukas Meisner 1
Marcus Monk 1
Florian Moysich 2
Leo Niebuhr 1
Claude-didier Njoya Nken 1
Yannick Opitz 1
Paul Owusu 2
Tim Parohl 2
Nderim Pelaj
Dorsten (GER-3)
1
Blake Poole
Dorsten (GER-3)
1
Dima Rastatter 1
Nico Redlich 1
Thomas Reuter
BSV Wulfen (GER-3)
1
Davon Roberts 1
Farid Sadek 1
Howard Sant-Roos 1
Kevin Schaffartzik 1
Kai Schluter 1
Stefan Schmoll 1
Tim Schonborn 1
Max Schulze-Pals
Dorsten (GER-3)
1
Florian Sefranek 1
Rodriguez Sherman
BSV Wulfen (GER-3)
1
Kevin Smit 1
Dijon Smith
BSV Wulfen (GER-3)
1
Philipp Spettmann
Dorsten (GER-3)
1
William Taylor 1
Michael Taylor 1
Tobias Tessmann 1
Thorben Vadder
BSV Wulfen (GER-3)
1
Leo Vrkas 1
David Watson 1
Brian Wenzel 1
Jorn Wessels 1
Jan Wimberg 1
Alexander Witte 1
Max Wittenberg 1