San Antonio: Tim Duncan tallied 23 points and 11 rebounds to power San Antonio to a 111-87 victory over Miami in a rematch of the two NBA finalists from last season.
Tony Parker finished with 17 points and four assists for the Spurs who snapped their five-game regular season losing streak against the Heat.
Miami beat the Spurs 113-101 on January 26 at home in the first meeting between the clubs since the Heat beat San Antonio last season to win their second consecutive league title.
San Antonio came close to beating the Heat in the finals but Miami prevailed with a dynamic game-seven win.
Boris Diaw tallied 16 points, eight boards and five assists on Thursday for the Spurs, who have won five straight and eight of nine overall.
Chris Bosh finished with 24 points with seven rebounds and LeBron James contributed 19 points and eight rebounds for Miami at AT&T Centre.
The Spurs have now won 13 of their last 15 regular season games against the Heat at home.
San Antonio will host the Orlando Magic on Saturday on this homestand, then visit Chicago on Tuesday.
Miami had an eight-game winning streak halted Tuesday with a 106-103 road loss to the Houston Rockets.
It doesn’t get any easier for the Heat who visit the Chicago Bulls on Sunday.
James, who had been in brilliant form through February, also had seven assists against the Spurs after scoring 22 points against Houston earlier in the week.
It was the worst loss of the 2013-14 season for Miami, marking the first time they lost consecutive games since losing three straight in mid-January.
James shot six-of-18 from the field and played a good portion of the second half in foul trouble, while Dwyane Wade finished with 16 points on seven-of-15 shooting.
Miami also shot just 44 per cent from the field and committed 20 turnovers, including 10 in the final quarter.
