Alan Anderson scored 19 of his career-high 27 points in the second quarter and Amir Johnson had 19 for the Raptors, who lost their second straight after winning eight of nine.
“I praised our guys, the way we fought and scrapped,” Raptors coach Dwane Casey said. “But at the end of day reality set in.”
DeMar DeRozan scored 11 points but made just four of 16 field goal attempts. DeRozan made only 3 of 11 attempts in Friday’s loss to Sacramento.
“We wanted to make sure we didn’t give him any easy shots,” Brooks said. “He’s an athletic guy that can get to the rim and his mid-range game is good.”
Kyle Lowry scored 10 for the Raptors, who had won four of their previous five home meetings with Oklahoma City. Jose Calderon had 10 points and 11 assists as Toronto dropped to 6-14 against Western Conference opponents.
Toronto guard Terrence Ross left one minute into the fourth quarter with a sprained left ankle and did not return. Casey said Ross’ injury is not considered serious but declined to say whether the rookie would be available for Wednesday’s game against Philadelphia.
Ibaka scored 10 points as the Thunder built a 23-12 lead with 3:10 left in the first, but Toronto closed the quarter with six straight points to make it 23-18 after one.
Anderson connected on his first six field goal attempts of the second quarter, including four 3-pointers, as the Raptors took a 39-37 lead with 5:40 left. Toronto kept it close the rest of the way, but a 3 by Thabo Sefolosha with 36 seconds left gave Oklahoma City a 52-50 edge at the half.
“That second quarter we were just exchanging baskets and when you do that, teams can get comfortable and teams can get hot,” Brooks said.
Anderson and the Raptors cooled off in the third, making just five of 16 field goal attempts. Westbrook scored 12 points for the Thunder in the third as Oklahoma City pulled away again, taking a 78-67 lead into the fourth.