In just more than a minute of the overtime, the Warriors sprinted out to a seven-point lead when Harrison Barnes made a three-pointer to put Golden State ahead, 97-90. Mayo went on a personal 9-2 run to tie the game at 99-99, but the Warriors put down their free throws to secure the win.
Mayo led the Mavs in scoring with 27 points on 11-21 shooting, while Chris Kaman added 18 points and 17 rebounds. Troy Murphy was the only other Maverick in double digits, scoring 12 points in the loss that dropped Dallas to 6-6 on the season.
Steph Curry poured in 31 points to lead the Warriors to the win. Barnes and David Lee added double-doubles as well, with Barnes scoring 20 with 12 rebounds, and Lee adding 17 points and 19 rebounds.
Dallas next plays Wednesday, Nov. 21, hosting the 7-1 New York Knicks.