The Thunder's fourth-quarter box score was impressive:
— OKC shot 65.0 percent (13 for 20) from the field, 50.0 percent (3 for 6) from 3-point range and 85.7 percent (6 for 7) from the free-throw line.
— The Thunder had zero turnovers while Dallas had four turnovers, resulting in six points for OKC.
— The Thunder had five assists, two steals and two blocked shots.
— The Mavs had two assists, zero steals and one block.
Harden erupted for 15 points (6 for 9 from the field; 3 for 3 from the line) in the final 9:29, and also had three assists in the final period.
Durant added nine points (3 for 4 from the field; 2 for 3 from 3-points range), six huge rebounds and one blocked shot (a Dirk Nowitzki attempt underneath with 1:50 remaining).
Despite an off night shooting, Russell Westbrook had two key steals that helped give OKC the lead for good.
"Defense. I think it's just our team defense and toughness," Westbrook said of the comeback.
The defense now rests, awaiting the Los Angeles Lakers-Denver Nuggets winner.