James Harden scored 49 points and Robert Covington came up with a huge tip-in at the end of regulation as the Rockets outlasted the Mavericks 153-149 in overtime. Covington tipped in a miss on Harden's missed free throw with 3.3 seconds left in the fourth quarter to force the extra session. Russell Westbrook added 31 points, 11 rebounds and eight assists for Houston. Kristaps Porzingis had 39 points and 16 rebounds for Dallas, and Luka Doncic tallied a triple-double with 28 points, 13 rebounds and 10 assists.