San Antonio took the first two games in this series before dropping a pair in Oklahoma City, evoking similarities of two years ago when the Thunder ripped off four straight wins after going down 0-2 to become conference champs.
Those comparisons quickly ended when the Spurs made 13 3-pointers and had six players score in double figures in Game 5's 117-89 drubbing at AT&T Center.
After holding the Spurs to under 40 percent shooting in Games 3 and 4, the Thunder watched helplessly as San Antonio made 51.3 percent of its shots.
Serge Ibaka was limited to six points and just two rebounds in the loss.
The home team has taken the first five games of this series, and the Thunder hope the trend continues Saturday in a must-win Game 6 in Oklahoma City.