Here is the list of winners so if you dont want to see them since you havent seen episode yet dont qoute this...
[Show spoiler]
PIRATE vs. KNIGHT
WINNER: PIRATE
SPARTAN vs. NINJA
WINNER: SPARTAN
SAMURAI vs. VIKING
WINNER: SAMURAI
APACHE vs. GLADIATOR
WINNER: APACHE
MAFIA vs. YAKUZA
WINNER: MAFIA
GREEN BERETS vs. SPETSNAZ
WINNER: SPETNAZ
Shaolin Monk vs Māori Warrior
WINNER: Shaolin Monk
William Wallace vs Shaka Zulu
WINNER: William Wallace
IRA vs Taliban
WINNER: IRA