Updated

San Antonio, TX (SportsNetwork.com) - Tim Duncan netted 15 points, Manu Ginobili scored 11 and Tony Parker poured in 10 to help the San Antonio Spurs take a 54-49 lead over the Miami Heat after the first half of Thursday's Game 1 of the NBA Finals from AT&T Center.

Ginobili provided a spark off the bench in the opening frame, draining 3-of-4 attempts from 3-point range and adding a trio of assists as the Spurs took a 26-20 lead after 12 minutes.

San Antonio's bench outscored Miami's reserves 12-0 in the frame, but Ray Allen knocked down his first three 3-point attempts in the second quarter to help Miami cut into the margin.

Allen's third trey of the stanza sliced Miami's deficit to 42-41 with 5:05 left before halftime, but the Spurs continued to get production from their bench, as reserve Marco Belinelli answered with a triple of his own.

After Parker added a free throw to push the spread to five, LeBron James, who spent the first five minutes of the second quarter on the bench, reeled off the next six Miami points to get his team within 49-47.

Duncan helped San Antonio create some separation late in the frame, closing the quarter on a personal 5-2 swing to send the Spurs into the break with a 54-49 advantage.

San Antonio's "Big Three" combined for 36 of the team's 59 points, while James (13), Dwyane Wade (12), and Chris Bosh (10) combined for 35.

Bosh shot 4-of-7 from the floor, including 2-of-3 from 3-point range, and added seven rebounds over the first 24 minutes.