Parsons went 12-of-13 from the field overall and got 11 of his total in the big quarter, which saw the Rockets drain six 3-pointers.
James Harden struck for 14 of his 21 points during the frame -- which matched the third-highest quarter total in the NBA this season.
O.J. Mayo led Dallas with 18 points as the Mavericks fell for the fourth time in five games.
Swim Week Miami Beach 2014 [PHOTOS]