With Toronto's first-round pick Delon Wright sitting out of Monday's NBA Summer League game, it allowed another guard to take center stage.
Norman Powell, a former UCLA standout, continued to emerge as one of this year's most under-the-radar draft picks.
The 46th overall pick scored a team-high 19 points and had five rebounds to help the Raptors hold off a late surge by the Houston Rockets in a 95-87 win at the Cox Pavilion in Las Vegas.
Powell was efficient in doing so, going 7-for-11 from the field and 5 of 6 from the free-throw line. After his first three NBA pool-play games, the 6-foot-4-inch guard is averaging 19.3 points per game for the Raptors.
Gary Talton added 13 points, and Philip Scrubb scored 10 for Toronto, which got six points and 13 rebounds from 7-0 forward Lucas Nogueira. The Raptors had a 52-34 rebounding advantage over the Rockets.
Toronto, which led 41-36 at halftime, shot 33-for-69 (47.8 percent) from the field and finished the pool play a perfect 3-0 record.
Glen Rice scored 24 of his 28 points in the second half to lead the Rockets. He was 7 of 18 from the floor and 3-for-9 from long distance. Rice became streaky in the fourth quarter, when he touched the ball on seemingly every possession and cut a once 18-point deficit to just three points (85-82 with 1:30 left).
Montrezl Harrell, a Louisville product, had 15 points and seven rebounds on 5 of 10 shooting for Houston. His free-throw shooting woes continued, as he was 5-for-12 from the line while playing 32 minutes.
Aubrey Coleman and D.J. Kennedy also scored 12 points apiece for the Rockets, who finished 26-for-77 (33.8 percent) from the floor and 7 of 24 (29.2 percent) from the 3-point line.
Toronto (3-0) and Houston (2-1) will both be awaiting their seeds for the start of single-elimination play, which starts Wednesday.