NEW YORK (AFP) - Filipino fighter Nonito Donaire retained his World Boxing Council and World Boxing Organization bantamweight titles Saturday with a 12-round unanimous decision over Argentina's Omar Navarez. Donaire improved his win to loss ratio to 27-1 and stretched his nine-year winning streak to 26 fights. The three judges ringside at the Theater at Madison Square Garden all scored it 120-108 in favor of Donaire, who dealt Navarez -- a two-time flyweight and super flyweight champ -- the first defeat of his 11-year professional career. However, the crowd of 4,425 was unhappy with the lack of action and Donaire's inability to break through the challenger's defences for the knockout. Donaire won the title with a convincing second-round knockout of Fernando Montiel in Las Vegas in February. The 28-year-old southpaw, fighting in New York for the first time, was looking comfortable by the fourth round, when he began landing more punches and backed Navarez into the ropes with a combination. Navarez, also a southpaw, went into a defensive shell, keeping his clenched hands in front of his face as he seemed happy to let the bout go the distance. "When I know that the guy wouldn't open up, I kind of got bored because no matter what I opened my hands, I opened my face and the least you can do is hit me with a jab, hit me with something." When Donaire managed to land some uppercuts late in the 10th round the crowd went wild, but they reverted to jeers as the pace dropped off in the 11th.