Thunder at Spurs - WCF Game 4
8:00 PM ET | Frost Bank Center | NBC / Peacock
Western Conference FinalsGame 4OKC leads 2-1
The only game on the NBA calendar Sunday is the swing game of the Western Conference Finals. Oklahoma City won Game 3 in San Antonio 123-108 to take a 2-1 series lead, and now the defending champions can put the Spurs in a 3-1 hole that almost no team recovers from. San Antonio is the home favorite at -2.5, the moneyline sits around SAS -130, and the total has settled near 218.5. The line tells you the market still respects home court at Frost Bank Center even with the Thunder holding the better season-long resume.
The story of Game 3 was the Oklahoma City bench, which poured in 76 points, led by Jared McCain's 24 off the unit. The Thunder dug out of an early 15-0 hole and let their depth take over, with Shai Gilgeous-Alexander posting a tidy 26 points and 12 assists. Victor Wembanyama answered with 26 for San Antonio, but the Spurs could not match the second unit production and watched their home-court edge evaporate in the second half. That bench gap is the single biggest reason the Thunder are in control of this series.
Oklahoma City by the Numbers
The Thunder finished the regular season 64-18 and carried the league's best defensive rating at roughly 107.3, the top net rating in basketball at around plus-11, and an elite 56.1 percent effective field goal rate. They are 30-10 on the road this season, which matters in a game they are playing away from home. Gilgeous-Alexander remains the engine, but the difference in this series has been the supporting cast: McCain, the second-unit scoring, and a defense that has been able to throw multiple bodies at Wembanyama without surrendering easy looks elsewhere. ESPN's model actually made San Antonio a slight favorite for Game 4, flagging it as the first time in 34 games that Oklahoma City entered as a playoff underdog.
San Antonio by the Numbers
The Spurs went 62-20 in the regular season and are a dominant 32-8 at home, which is the foundation of their favorite status tonight. They are the only team to finish top-three in both offensive and defensive rating, with an offensive rating near 119 and a defensive mark around 112.8. Wembanyama is the fulcrum of everything they do on both ends, and his 41-point, 24-rebound Game 1 showed the ceiling. The concern is the supporting scoring: when the role players go quiet, as they did in Game 3, San Antonio does not have the bench firepower to keep pace with Oklahoma City's waves.
The Health Picture
For San Antonio, the encouraging news is that both De'Aaron Fox, working back from a right high ankle sprain, and rookie Dylan Harper, dealing with a right adductor issue, are expected to play after both suited up in Game 3. Fox briefly left Game 3 after tweaking the ankle but returned, and neither appeared on Saturday's official injury report. For Oklahoma City, Jalen Williams is day-to-day with a left hamstring issue that kept him out of Game 3 and leaves him questionable, while Ajay Mitchell is also banged up and in doubt. Thomas Sorber and San Antonio's David Jones are both out for the season.
What to Watch
The first swing factor is whether the Thunder bench can repeat anything close to its 76-point Game 3 outburst; even half that production keeps Oklahoma City in control. The second is the Wembanyama help scheme, because San Antonio needs to get him touches before the double arrives and needs its role players to knock down the open looks that the trap creates. The third is the home crowd run that always comes in San Antonio; if the Spurs can flip the early script that buried them in Game 3, the building becomes a real factor.
The Series Math
A Thunder win tonight makes it 3-1 with Game 5 back in Oklahoma City, a near-insurmountable lead. A Spurs win evens the series at 2-2 and guarantees the home team a Game 5 on the road but keeps San Antonio alive with Wembanyama capable of stealing any single game. Game 4 is where this series is decided in terms of leverage, and both rooms know it.
Final Thoughts
This page is preview and analysis only, with no pick attached. The fair read is to watch the inactive report for Jalen Williams and Ajay Mitchell, then track the first six minutes to see whether the Thunder bench picks up where it left off or whether San Antonio's role players finally answer. The Spurs are home favorites because of the building and the expected return of Fox and Harper at full strength, but Oklahoma City has the depth, the defense, and the series lead. Whichever team controls the bench minutes likely controls the night.
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