Myles Turner scored 20 points, Pascal Siakam and Bennedict Mathurin each had 19 and the Indiana Pacers rallied to beat Detroit 115-109 on Wednesday night, spoiling coach JB Bickerstaff’s Pistons debut.

Detroit led by 12 points and was ahead after each of the first three quarters in a hard-fought game that featured 13 lead changes and four ties, but couldn’t hold on to the win.

The Pacers overcame an eight-point fourth-quarter deficit to outscore the Pistons 33-19 in both teams’ season openers.

Indiana’s Tyrese Haliburton had 15 points and TJ McConnell added 14.

The Pacers surprisingly reach the Eastern Conference finals while retaining key players like Siakam, an All-Star forward who was signed to a max contract.

Cade Cunningham scored 22 of his 28 points in the second half for the Pistons, whose trio of experienced freshmen turned in solid performances.

Detroit’s Tim Hardaway and Malik Beasley each had 14 points and Tobias Harris scored 13 points in the first game of his second stint with the franchise.

Jaden Ivey scored 17 points and Jalen Duren had 13 points and 13 rebounds for the Pistons, who had the league’s worst record over the past two seasons.

An overturned charge block call with 6:31 left turned Harris’ potential three-point play and two-point lead for the Pistons into a one-point deficit.

Indiana held Detroit to 5 of 20 shooting in the fourth quarter after the Pistons made nearly 50% of their shots in the first three quarters.

The Pacers remain on the road to play the New York Knicks on Friday night. Detroit is in Cleveland on Friday night.