Thunder Spurs Game 6 Preview: SGA 32, Wemby 20, San Antonio One Loss From Out

Shai Gilgeous-Alexander put up 32 points and nine assists Tuesday night as the Oklahoma City Thunder beat the San Antonio Spurs 127-114 in Game 5 to take a 3-2 series lead in the Western Conference Finals. Game 6 is Thursday, May 28 at 8:30 p.m. ET at the Frost Bank Center, with San Antonio opening as a 2.5-point home favorite at minus-142 on DraftKings.

The defending champs are one road win from a second straight NBA Finals trip. The Spurs are one home loss from their season ending. Victor Wembanyama, the engine of the entire series for San Antonio, was held to 20 points on 4-of-15 shooting in Game 5 and missed all five of his three-point attempts. That is the series story going into Thursday.

What Happened in Game 5

The Thunder won the game in the half-court. SGA was the closer, and Stephon Castle led the Spurs with 24 points and six assists in a losing effort. Wemby never settled in. His 20-point Game 5 was 21 below his series high from Game 1 (41 points and 24 rebounds, in a double-overtime classic that we wrote up here) and well off his 33-point Game 4 line.

Kenrich Williams continues to soak up rotation minutes for OKC with Jalen Williams managing a hamstring issue (more on that in our Game 3 hamstring report).

Two structural points from Game 5:

1. The Thunder shaped the game around forcing Wembanyama to attack help defenders in the half-court. Chet Holmgren took the front-of-rim assignment. Castle and SGA covered the help angles. Wemby's 4-of-15 line is the cleanest summary of that scheme. 2. The Spurs' bench produced enough through Games 1 and 4 to win two on this stage. In Game 5 it did not. Mitch Johnson has Game 6 at home and a Frost Bank Center crowd that will be loud from the opening tip.

The Numbers That Matter for Game 6

Through five games:

1. The Thunder lead the series 3-2 with home wins in Games 2, 3, and 5. The Spurs hold both home wins (Game 1 in double overtime, Game 4 by 21). 2. Wembanyama's series scoring line: 41, 24, 25, 33, 20. The 41 came with 24 rebounds. The 20 came on his lowest shot volume and worst shooting efficiency of the series. 3. SGA has been the most consistent scorer of the series and is one of the favorites to win Finals MVP if Oklahoma City gets through. 4. Castle has emerged as the Spurs' second-most reliable scorer. His Game 5 line was 24 points and six assists. 5. The Thunder won Game 5 by 13. The Spurs won Game 4 by 21 (103-82). The Game 1 margin was three in double overtime. This series has produced wide swings.

The Spurs do not get a third road game unless they hold serve Thursday night. History is not on their side. Teams trailing 2-3 in a best-of-seven win the series at well under a coin-flip rate, and only one of those wins comes without a Game 6 home victory by the trailing team. Hold serve, then it is one game for all the marbles.

Betting Impact: Spurs Minus-142 at Home, Total at 218.5

As of Wednesday morning, May 27, DraftKings has the Spurs at minus-142 on the money line and minus-2.5 on the spread for Game 6. The Thunder are plus-120 on the money. The total opened at 218.5.

Three angles to monitor heading into Thursday:

1. Wembanyama scoring line. Wemby has averaged in the high 20s across the series. With his back against the wall and the Thunder having proven they can hold him in the low 20s in a half-court setting, his scoring prop is the most consequential number on the board. The Frost Bank Center crowd matters here. 2. Castle assist prop. The Spurs rookie has been making the right reads with the ball, and Game 5's six-assist line was a series high. He gets primary looks at Lu Dort, Alex Caruso, and Cason Wallace as the Thunder rotate guards. 3. SGA Finals MVP futures. If OKC closes Game 6, SGA prices into the heavy favorite slot for Finals MVP. The Knicks are waiting in the Finals (we covered the Brunson sweep of the Cavs here), and SGA's matchup against Brunson is the guard war that will decide the series.

For DFS, the salary squeeze starts to bite Thursday. Wemby is going to be top-three salary. SGA will be top-three salary. The leverage plays sit in the second tier: Castle, Holmgren, Hartenstein, and the role players who close.

More NBA angles for the slate live on the NBA daily picks page.

The Coaching Question for Mitch Johnson

Spurs head coach Mitch Johnson has to answer one question on Thursday: does he keep Wembanyama on the floor through the late-game stretches even if Oklahoma City keeps doubling him into the post-up? The Wemby-as-decoy approach is the leverage play, but the Spurs do not have a counter scorer when Wemby gives up the ball at the elbow.

Castle is the answer over the long haul. He is also the player Oklahoma City has the most film on by this point in the series. The Thunder will not let Castle isolate against a switch in transition. He has to create on the move in early offense, off-ball, where the Spurs' set pieces have not produced this series.

The other lever for Johnson is the small-ball five with Wembanyama at center and Devin Vassell, Castle, Keldon Johnson, and Harrison Barnes on the floor. Those minutes have produced a positive net rating across the series. They are also the minutes Oklahoma City has fewer counters against.

What to Watch Next

Three things to track:

1. Wembanyama's first quarter shot diet. If Wemby is taking jumpers in the first six minutes, OKC's defensive plan is working. If he is getting downhill rim attempts, the Spurs are dictating. 2. Jalen Williams' minutes. Williams was managing a hamstring through Game 3 and 4. If he is back to 30-plus minutes Thursday, OKC plays the closeout. If he is still capped at 24, the bench depth thins. 3. NBA Finals dates. Game 1 of the Finals tips Wednesday, June 3 at 8:30 p.m. ET on ABC. The Knicks have had since Sunday off. The Western champion will get either two days of rest (if OKC wins Thursday) or far less (if the series goes seven).

Chad AI tracks every NBA prop and Finals futures market inside the app. Pull projections for Thursday at Chad.

For the full Game 5 box and rotation breakdown, ESPN has the recap here.

Gambling problem? Call 1-800-GAMBLER. Lines pulled from DraftKings the morning of May 27, 2026. Lines move. Always shop.