Although Rousey was heavily favored, Carmouche (7-3) actually got Rousey in trouble early, nearly landing a rearnakedchoke while clinging to Rousey's back in the opening two minutes.
Former UFC champion Lyoto Machida won a lackluster split decision over 42-year-old veteran Dan Henderson on the undercard at Honda Center, and bantamweight Urijah Faber beat Ivan Menjivar with an acrobatic rearnakedchoke late in the first round.