LOS ANGELES -- Isaiah Thomas hit a fadeaway jumper at the buzzer, lifting Washington past No. 16 Arizona 77-75 Saturday for the Pac-10 tournament championship in the first overtime title game in league history.

Thomas scored 19 of his 28 points in the first half, and freshman Terrence Ross added 16 for the third-seeded Huskies (23-10), who successfully defended their title and earned the league’s automatic bid to the NCAA tournament.

Pac-10 player of the year Derrick Williams had 24 points and 11 rebounds for the top-seeded Wildcats (27-7), who won the regular-season title.

Washington’s C.J. Wilcox hit a 3-pointer that tied the game 68-all with 7 seconds left in regulation.