In Game 6 of the NBA Finals against the San Antonio Spurs, as the Heat trailed by three points, Allen made a game-tying 3-pointer with 5.2 seconds left in the fourth quarter to force overtime. Having rallied from a 10-point deficit at the end of the third quarter, the Heat won in overtime 103–100 over the San Antonio Spurs and forced a seventh game in the series. With the Heat leading 101–100, Allen stole the ball from Manu Ginóbili under the Spurs' basket and drew a foul with 1.9 seconds remaining in the overtime period. Allen made both ensuing free throws to put Miami up 103–100. Allen played 41 minutes in Game 6 off the bench and scored 9 points on 3-for-8 field goal shooting; his game-tying three-pointer was the only three-pointer he made in three attempts. Allen also had one defensive rebound and two assists. In Game 7, which the Heat won 95–88 to win its second consecutive championship, Allen played 20 minutes off the bench. Although he made none of 4 field goal attempts and had 3 turnovers, Allen recorded 4 defensive rebounds and 4 assists.