Defending champion Yokohama B-Corsairs had no answer for the high-energy Iwate Big Bulls in their bj-league series opener on Friday.

Yokohama failed to mount a serious comeback in the second half as Iwate imposed its will on the game. The Big Bulls rolled to an 87-71 victory at Hiratsuka Municipal Gymnasium.

Iwate's potent inside-outside offensive attack, concocted by two-time title-winning coach Dai Oketani, proved lethal against the lethargic B-Corsairs, who were often a step too slow or simply overmatched.