David O'mahony ha enfrentado a 101 oponentes a lo largo de su carrera.

Player Team(s) Games
Theodor Aliferis
U20 Norway (Euro U20B)
1
Benjamin Allison 2
Bjornar Andreassen
U20 Norway (Euro U20B)
1
Ivan Andrevski 1
Petar Apcev 1
Ramil Babayev
U20 Azerbaijan (Euro U20B)
1
Devan Bailey 2
Brandon Barton
U20 Sweden (Euro U20B)
1
Robin Benzing
U20 Germany (Euro U20B)
1
Darrell Bethune 2
Aksel Bolin
U20 Norway (Euro U20B)
1
Tomas Bruha 1
Matthew Bryan-Amaning 2
Ziyed Chennoufi
U20 Germany (Euro U20B)
1
Andrej Curilov 1
Ivica Dimcevski 1
Petr Dokoupil 1
Mario Drazic
U20 Sweden (Euro U20B)
1
Cristofer Estensen
U20 Norway (Euro U20B)
1
Samuel Fernley
U16 England (Euro U16 B)
3
Magne Fivelstad
U20 Norway (Euro U20B)
1
Thomas Fox
U16 England (Euro U16 B)
1
Alhaji Fullah 2
Anton Gaddefors
U20 Sweden (Euro U20B)
1
Martyn Gayle
U16 England (Euro U16 B)
1
Per Guenther
U20 Germany (Euro U20B)
1
Anar Hajiyev
U20 Azerbaijan (Euro U20B)
1
Ashley Hamilton 2
Amil Hamzayev
U20 Azerbaijan (Euro U20B)
1
Pavel Harcar 1
Elias Harris
U20 Germany (Euro U20B)
1
Christian Hinsch
U20 Norway (Euro U20B)
1
Vojtech Hruban 1
David Hult
U20 Sweden (Euro U20B)
1
Mattias Hunt
U16 Estonia (Euro U16 B)
1
Antreas Iacovou
U16 Cyprus (Euro U16 B)
1
Orlan Jackman 2
Erik Jakobsson
U20 Sweden (Euro U20B)
1
Andreas Karlsson
U20 Sweden (Euro U20B)
1
Anastasios Katsiamidis
U16 Cyprus (Euro U16 B)
1
Erik Keedus
U16 Estonia (Euro U16 B)
1
Gabriel Kilaras
U16 Cyprus (Euro U16 B)
1
Margus Klementsov
U16 Estonia (Euro U16 B)
1
Miilah Kombat
U20 Norway (Euro U20B)
1
Christian Koutras
U20 Sweden (Euro U20B)
1
Bojan Krstevski 1
Nicos Lambrou
U16 Cyprus (Euro U16 B)
1
Tomas Macela 1
Rufat Mahmudzade
U20 Azerbaijan (Euro U20B)
1
Stamatis Makris
U16 Cyprus (Euro U16 B)
1
Lukas Marik 1
Branislav Markovski 1
Adam Marshall
U16 England (Euro U16 B)
1
Daniel McKay
U16 England (Euro U16 B)
1
Jakub Mikulec 1
Emil Mirzayev
U20 Azerbaijan (Euro U20B)
1
Filip Mitik 1
Stian Mjoes
U20 Norway (Euro U20B)
1
Benjamin Mockford 2
Lubos Moravec 1
Kamal Muradov
U20 Azerbaijan (Euro U20B)
1
Slave Nikolov 1
Reigo Nomm
U16 Estonia (Euro U16 B)
1
Michael Ochereobia 2
Robert Oehle
U20 Germany (Euro U20B)
1
Terrence Oglesby
U20 Norway (Euro U20B)
1
Donald Okpalugo
U16 England (Euro U16 B)
1
Kim Palmqvist
U20 Sweden (Euro U20B)
1
Lukas Palyza 1
Dimitar Petrushev 1
Georgios Phedonos
U16 Cyprus (Euro U16 B)
1
Dino Pita
U20 Sweden (Euro U20B)
1
Tibor Pleiss
U20 Germany (Euro U20B)
1
Henri Polakene
U16 Estonia (Euro U16 B)
1
Tomas Pomikalek 1
Rain Raadik
U16 Estonia (Euro U16 B)
1
Christopher Razis
U16 Cyprus (Euro U16 B)
1
Kai-Leon Robinson
U16 England (Euro U16 B)
1
Johan Roenstrom
U20 Sweden (Euro U20B)
1
Elchin Rzaguliyev
U20 Azerbaijan (Euro U20B)
1
Anton Saks
U20 Sweden (Euro U20B)
1
Kevin Schaffartzik
U20 Germany (Euro U20B)
1
Philipp Schwethelm
U20 Germany (Euro U20B)
1
Marko Simonovski 1
Colin Sing 2
Jiri Slavik 1
Sten-timmu Sokk
U16 Estonia (Euro U16 B)
1
Torgrim Sommerfeldt
U20 Norway (Euro U20B)
1
Jan Spacek 1
Aleksandar Spasovski 1
Tom Spoler
U20 Germany (Euro U20B)
1
Lucca Staiger
U20 Germany (Euro U20B)
1
Anders Stien
U20 Norway (Euro U20B)
1
Karsten Tadda
U20 Germany (Euro U20B)
1
Jeffery Taylor
U20 Sweden (Euro U20B)
1
Dmitri Tkatsenko
U16 Estonia (Euro U16 B)
1
Henry Utku
U16 England (Euro U16 B)
1
Karl-Ingemar Viilver
U16 Estonia (Euro U16 B)
1
Raitel Voikar
U16 Estonia (Euro U16 B)
1
Morakinyo Williams 2
Matthew Williams
U16 England (Euro U16 B)
1