Ken Singleton drove in two runs with a homer and a single as the Baltimore Orioles defeated the Tigers, 4-2, last night in Detroit.

Singleton's homer, his ninth of the season, was a two-out shot into the left-center field stands off Detroit starter Milt Wilcox (5-4) that snapped a 2-2 tie in the eighth.

The Orioles added a run in the ninth on Gary Roenicke's RBI double, the eighth hit off Wilcox, who pitched the entire game.

Winner Scott McGregor (5-1), who has won his last five starts, gave up seven hits before getting relief help in the ninth inning from Tippy Martinez. It was his seventh save.

Baltimore scored two runs after two were out in the third. Al Bumbry was safe on a fielder's choice grounder and scored all the way from first on Rich Dauer's double to center. Then Singleton drove Dauer in with a single.

Lou Whitaker singled in the Detroit fifth, went to third on Al Cowens' hit-and-run single and scored on Alan Trammell's sacrifice fly.

John Wockenfuss hit a leadoff single in the Detroit sixth, went to third on Lance Parrish's single, and came home on Champ Summers' sacrifice fly to tie the game, 2-2.