NEW YORK — LeBron James tied his playoff career high with 49 points, Chris Bosh made the tiebreaking 3-pointer with 57 seconds left, and the Miami Heat beat the Brooklyn Nets 102-96 on Monday night for a 3-1 lead in the Eastern Conference semifinals.

James carried the Heat nearly the entire way until Bosh hit the shot that put Miami ahead for good. Ray Allen followed with four free throws and James finished it off with one more, putting the Heat in position to wrap it up at home Wednesday in Game 5.

Trail Blazers 103, Spurs 92

PORTLAND, Ore. — Damian Lillard scored 25 points and the Portland Trail Blazers staved off elimination in the Western Conference semifinals with a 103-92 victory over the San Antonio Spurs on Monday night.

Nicolas Batum had 14 points, 14 rebounds and eight assists to cut San Antonio’s advantage in the series to 3-1.

Portland held Tony Parker to 14 points.