Allonzo Trier scored 30 points and No. 3 Arizona overpowered visiting UMBC for a 103-78 win Sunday despite leading only 58-55 early in the second half.
DeAndre Ayton added 19 points and 13 rebounds for the Wildcats (2-0), who scored over 100 points for the second time in two games this season.
Arizona pulled away with Trier's 3-pointer, one of five for the junior guard, for an 86-68 lead, then freshman Alex Barcello hit back-to-back 3s to put the game away.
The Wildcats made 61 percent of their shots for the game and 15 of 28 3s.
Guard Jairus Lyles scored 23 of his 31 points in the first half for the Retrievers (0-2). Jourdan...