INDIANAPOLIS -- The Raptors' playoff series against the Indiana Pacers is headed back to Toronto all tied up at two games apiece.

George Hill and Ian Mahinmi had 22 points apiece to lift the Pacers to a 100-83 win in Game 4 on Saturday as Indiana pulled even in the best-of-seven opening-round series.

Jonas Valanciunas had 16 points to top the Raptors, who got another ugly performance from all-star DeMar DeRozan. DeMarre Carroll and Kyle Lowry had 12 points apiece and Norman Powell chipped in with 10.

The Raptors could do little right on an afternoon that saw them trail by as many as 25 points in the first half, and head into the fourth quarter down 73-58. They pulled to within 12 points twice in the final frame, but couldn't maintain any momentum.

Lowry fouled out with 4:41 to play and when Solomon Hill drilled a three-pointer with 3:19 left, the Pacers' lead rose to 19 and the game was well in hand.

Ill will between the teams erupted in the final quarter when Valanciunas and George Hill had to be separated.

DeRozan had just eight points on 4-of-15 shooting and his air ball on a corner three-point attempt summed up his playoff series so far. The all-star was Toronto's leading scoring in the regular season.

Lowry fared only slightly better, shooting 4-for-12. Turnovers also proved costly as the Raptors turned the ball over 19 times.

The Raptors, who lost Game 1 before bouncing back to win Games 2 and 3, have never won three consecutive playoff games.

They're in search of just their second playoff series win. Their lone post-season victory came in 2001 when they knocked off the New York Knicks.

The loss was a disappointment to the hundreds of Raptors fans made the trip from Toronto, but many saw their "We The North" signs confiscated at the entrance gate. Montreal Canadiens star P.K. Subban sat courtside and Indianapolis Colts quarterback Andrew Luck was also in attendance.

Less than an hour before tipoff, the public address outside the Bankers Life Fieldhouse was announcing tickets were still available. Meanwhile, back in Toronto, fans packed into Maple Leaf Square to watch the game on a giant screen.

The series heads back to Toronto for Game 5 on Tuesday, while Game 6 will be back in Indianapolis on Friday.

The Raptors stumbled out in a weak first quarter, shooting just 35 per cent. The Pacers hit four three-pointers to go up by 14 points, and Indiana led 28-16 heading into the second.

The Pacers stretched their lead to 25 points late in the second, but Toronto ended the quarter on a 14-4 run to cut Indiana's lead to 57-42 at halftime. Toronto showed some life in the third and a driving dunk by Terrence Ross cut the deficit to 11.