SEATTLE — With every open look, every shot Tyler Dorsey dropped through the basket, the grin got a little bit bigger and a little more noticeable. Dorsey had every reason to smile after his performance for No. 15 Oregon in its Pac-12 road opener. “It was just one of those nights where the basket just feels wide and everything felt like it was going to go in and it did tonight,” Dorsey said. Dorsey made eight 3-pointers and finished with 28 points, and Oregon overcame foul trouble to pull away in the second half for an 83-61 win over Washington on Wednesday night. Playing in an opponent’s gym for only the second time this season, the Ducks shook off foul problems for its two leading scorers — Dillon Brooks and Chris Boucher — to easily take care of the Huskies.