HOUSTON — Rob Gray Jr. scored 15 points, and Devonta Pollard and Danrad Knowles added 13 apiece as Houston defeated Tulane 63-45 on Tuesday night to remain unbeaten in American Athletic Conference play.

Houston (13-2, 3-0) steadily walked away from Tulane to lead 37-17 at halftime and generally held a 20-point lead the rest of the game.

The Cougars outrebounded Tulane 50-32, collaring 30 defensive rebounds and making just seven turnovers.

The Green Wave (7-9, 0-3) made 17 field goals while shooting 32 percent (17 of 52) and getting just nine offensive rebounds. With 11 points, Malik Morgan was the only player to reach double figures, and that came on Tulane’s last basket of the game.

Tulane played without Jernard Jarreau, who missed the game after a violation of team rules.

LeRon Barnes collected a career-best 14 rebounds for Houston, which is 3-0 for the first time since the 2007-08 season to open its conference schedule.