(REUTERS) - Dwyane Wade scored 30 points as the Miami Heat defeated the Toronto Raptors 94-87 in overtime on Monday at AmericanAirlines Arena to tie their National Basketball Association Eastern Conference semi-final series.

Game 5 in the best-of-seven series is on Wednesday at Toronto.

Miami's overtime effort was led by Justise Winslow's tip-in basket, Joe Johnson's two blocked shots, a lay-up by Goran Dragic and a steal and dunk by Wade.

In a low-scoring game, the offensive futility was symbolised by a Wade shot in overtime than got stuck on the rim, resulting in a jump ball.

The Raptors had a chance to win the game in regulation but Cory Joseph missed a 15-foot jumper at the buzzer. In the previous possession, Wade drove to the basket and tied the score with 12.6 seconds left.

Toronto got scoring from some unexpected sources - 14 points each from DeMarre Carroll and Joseph.

In addition, emergency starter Bismack Biyombo, who replaced injured centre Jonas Valanciunas, had a double-double with 13 points and 13 rebounds.

But Toronto's starting guards were largely ineffective.

Kyle Lowry had 10 points, and DeMar DeRozan, who was playing with a jammed right thumb, had nine points. Lowry fouled out with 1min 58sec left in the fourth quarter after he was called for an offensive infraction, hooking the defender with his off hand.

Miami got off to a hot start, shooting 55.6 per cent and taking a 25-21 lead in the first quarter. Toronto shot just 36.8 per cent.

The Heat extended their lead to 44-35 at half-time - the first time in this series that Miami led at the break. Toronto shot just 22.7 per cent in the second quarter.

Toronto, though, put together a 15-4 run to start the third quarter abd used that spurt to take a 62-60 lead after three quarters.

After shooting so poorly in the first half, Toronto made 64.7 per cent in the third quarter. Carroll made 5-of-5 from the floor in the third as Toronto held Miami to 37.5 per cent.