"We got some good looks. We missed a lot of open ones. End of the day you have to live with it. We just didn't finish it off."
Fellow All-Star Russell Westbrook wasn't much help, shooting 7 for 19 that included missing a 3-footer with 25.9 seconds left.
"It was just variety of things on the offensive end," Brooks said. "We didn't do a great job of attacking. We were settling for too many jump shots in the first half and even in the third (quarter)."
Thunder guard James Harden provided a lift off the bench, scoring a team-high 23 points while shooting 5 for 9 from the field and 11 for 13 from the free-throw line. He also handed out four assists.
OKC jumped to an 18-10 lead, but the momentum flipped when Toronto switched to a zone defense that baited the Thunder to take jumpers rather than continuing to penetrate.
Toronto coach Jay Triano said his team's two points of emphasis were to limit the Thunder in transition points and second-chance points, and the Raptors succeeded in both.
OKC finished with just 10 second-chance points, all coming in the second half. Toronto also outscored the Thunder 15-10 in fast-break points. Free-throw shooting, another key element to OKC's success this season, faltered in the fourth quarter.
The Thunder converted 15 of 19 in the final period (.789) and center Kendrick Perkins missed two free throws with 41.7 seconds left and OKC leading 93-90.