Damian Lillard scored 33 points and handed out 10 assists and the Portland Trail Blazers completed a sweep of a four-game road trip by downing the Detroit Pistons 124-101 on Wednesday.CJ McCollum supplied 24 points and six assists for the Blazers, who finished with an 11-4 record in March. Robert Covington and Carmelo Anthony each scored 16 points. Norman Powell added 14 points with three steals, and Enes Kanter chipped in 10 points and eight rebounds.Portland shot 51.2 percent from the field and went 16-for-30 on 3-point attempts.Jerami Grant’s 30 points led the Pistons, who have lost five of their past six games. Hamidou Diallo contributed 19 points and seven rebounds off the bench, and Mason Plumlee had 18 points. Cory Joseph added 11 points and nine assists.Portland led by eight midway through the first quarter, but Detroit finished the period with a 19-9 run to gain a 33-31 advantage.The Pistons were still clinging to a slim lead, 52-51, at halftime. Grant led the way with 17 points and four assists in the first half. Covington topped the Trail Blazers with 11 points before the break.Portland went on a 17-2 run early in third to gain a 68-56 lead. Lillard was the catalyst, scoring 10 points during that stretch, and Powell completed the run with a 3-pointer.An Isaiah Stewart 3-pointer with four minutes left in the quarter cut the Blazers’ lead to 75-70.