LAS VEGAS, July 13 - The Toronto Raptors (1-2) broke open a tightly contested game in the fourth quarter with the Portland Trail Blazers (0-1) en route to a 92-87 victory Monday evening in the 2009 NBA Summer League presented by EA Sports from the COX Pavilion in Las Vegas.

The game featured 22 lead changes and 12 ties with the last coming at 66-66 with 9:38 remaining in the fourth quarter. Toronto put some daylight between itself and Portland when Quincy Douby nailed a three pointer. Douby had a team-high 20 in the tilt.

The Trail Blazers pulled within on at 69-68 with help from free throws by Pooh Jeter, but that was as close as they would come down the stretch. The Raptors extended their lead to 10 points on two occasions before winning by five.

The contest began with three ties during the first 2:37 of the first quarter. Portland then broke open the game and held a 17-9 lead with 3:50 remaining. Toronto turned things around in the final 3:08 with an 11-4 run of its own to end the first 10 minutes down one at 21-20.

After watching Toronto knot the score up at 22 just 38 seconds into the second quarter, Portland rattled off a 7-0 run in 70 seconds to take a 29-22 lead. The Raptors then decided to follow their late first quarter showing and go on an 11-3 outburst for a 33-32 lead of their own. The teams then proceeded to alternate leads 11 times before Toronto took a two-point lead going into the half at 48-46.

Portland outscored Toronto 20-16 in the third to hold a 66-64 lead through 30 minutes of play. The third period featured five lead changes and six ties.

Besides Douby’s output, Toronto got double-digit efforts from four other players. DeMar DeRozan contributed 15 points, while Patrick O’Bryant and Roko Ukic had 12 apiece. Brent Petway closed out the foursome with 11.

Portland was led by a 22-point outing by Jerryd Bayless. Dante Cunningham followed Bayless closely with 21 scores of his own. Jeff Pendergraph had 12 points, while Bobby Jones and Jeter had 11 and 10, respectively.

Both teams return to the COX Pavilion on Wednesday, July 15. Toronto will face the Phoenix Suns at 5:00 pm, while Portland and the Houston Rockets follow at 7:00 pm.