Utah completed an impressive two-night sweep of the NBA's powerhouse Florida teams, having scored 42 points in the fourth period Tuesday before defeating Miami in overtime 116-114.
Orlando led by 18 late in the third period, but Utah caught up with less than 5 minutes having gone by in the fourth. The Jazz finished the game on a 14-6 run with Williams making four free throws in the final 30 seconds.
Paul Millsap, who had 46 in the win over Miami, added 23 against Orlando and Al Jefferson contributed 23.
Vince Carter paced the Magic with 20 points and Jameer Nelson had 19. The Magic had won their previous four games and had been unbeaten in four games at home this season.
Utah hit 51 percent of its shots from the floor and made 25-of-28 from the line.