TEMPE, Ariz. (AP) — Gabe York scored 22 points, Allonzo Trier added 20 and No. 8 Arizona outlasted Arizona State 94-82 Sunday in both teams' Pac-12 opener.

Arizona (13-1, 1-0 Pac-12) dominated inside in the first half and built a 16-point lead in the second on a barrage of 3-pointers. The Wildcats shot 55 percent overall and made 7 of 12 from 3-point range, including 5 of 8 in the second half.

The Sun Devils (10-4, 0-1) cut Arizona's lead to six with three minutes left but couldn't climb all the way back. York hit three 3-pointers during a big second-half run and made eight free throws in the final 1:18, including four on a pair of technical fouls against Arizona State coach Bobby Hurley, who was ejected.

Tra Holder had 24 points and Obinna Oleka added 17 for the Sun Devils.

Arizona State's shooting took a big dip when Arizona turned up the defensive pressure, going more than five minutes without a point.

Arizona ran through its nonconference schedule with one loss -- to No. 12 Providence -- despite playing eight games without 7-foot center Kaleb Tarczewski (foot injury) and six without junior guard Elliott Pitts (personal reasons).

Tarczewski returned, but came off the bench, though Pitts spent the game in street clothes again.

Tarczewski gave the Wildcats a spark after they fell into the early hole, scoring five points during a 14-0 run. He and Dusan Ristic helped the Wildcats dominate Arizona State inside, scoring 15 combined points to put Arizona up 41-35 at halftime.

The second half was a defensive battle early before Arizona kicked its offense into higher gear. Sparked by York's trio of 3-pointers, the Wildcats used a 13-4 run to go up 66-53 and pushed the lead to 16.

Arizona State wasn't quite done, though.

Kody Justice scored on a 4-point play and Oleka dunked over Ryan Anderson during a 12-2 run that cut Arizona's lead to 78-72 with about three minutes left.

Holder added a 3-pointer to keep the Sun Devils within six, but Hurley was ejected after a string of foul calls sent the Wildcats to the line. Arizona made 13 of 14 free throws in the final 78 seconds to seal the victory.

TIP INS

Arizona: The Wildcats open the Pac-12 season with three straight road games for the first time since 1994-95. ... Tarczewski was called for a technical foul in the second half for arguing a foul call against him.

Arizona State: The Sun Devils had outrebounded teams by 5.3 per game during their non-conference schedule, but had seven fewer rebounds than Arizona. ... Forward Savon Goodman had 2 points on 1-of-4 shooting after missing four games because of unspecified reasons.

WHAT'S NEXT

Arizona plays at No. 25 UCLA on Thursday.

Arizona State plays at Southern California on Thursday.