Indiana trailed by as many as 14 in the second period before rallying for its second straight win. The Pacers have played seven of their first 11 games on the road. Toronto lost its third in a row.
West made 1-of-2 free throws with 17 seconds remaining to give Indiana a 91-90 lead. Tyler Hansbrough grabbed the offensive rebound after West had missed his second attempt and Hansbrough soon made two foul shots for a three-point lead.
Toronto's hopes were all but wiped out when Jamaal Magloire missed two free throws with 14 seconds remaining and Darren Collision hit two from the line for the Pacers to conclude the scoring.
DeMar DeRozan scored 23 for the Raptors.