The San Antonio Spurs vs. Oklahoma City Thunder Game 1 is set to tip off at 8:30 p.m. ET on Monday, May 18, with the Thunder entering as 6.5-point favorites on the PrizePicks Team Picks spread.
The Thunder easily dispatched the Los Angeles Lakers in the second round, while the Spurs took down the Minnesota Timberwolves to set up this Western Conference Finals matchup. Which heavyweight will gain the early advantage in the series on Monday?
Below, we'll break down our Spurs vs. Thunder prediction and picks for Monday’s NBA game, including the spread, over/under, and key player picks for PrizePicks.
Make your Spurs vs. Thunder prediction on PrizePicks for tonight’s Game 1.
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Spurs vs. Thunder Prediction, Spread, Over/Under for WCF Game 1 – Monday, May 18
The Thunder have looked like a well-oiled machine through the opening two rounds of the NBA postseason.
Oklahoma City has racked up a perfect 8-0 record with consecutive sweeps against the Phoenix Suns and Lakers. Last round, the Thunder won each game by an average margin of 16 points.
Meanwhile, the Spurs may not have had as perfect a postseason performance, but they've still looked particularly impressive. San Antonio eliminated the Portland Trail Blazers in five games in the opening round and the Minnesota Timberwolves in six in the Western Conference semifinals.
Now, the Western Conference’s top two seeds will battle it out for a spot in the NBA Finals.
During the regular season, the Spurs thrived against the Thunder, posting a 4-1 straight-up record with wins in two of the three meetings in Oklahoma City. San Antonio averaged 114.4 points in those five games and won the final matchup on Feb. 4, 116-106.
Thunder SF Jalen Williams is slated to make his return to the lineup in Game 1 after missing the last six games due to a hamstring strain. Williams played in four regular-season games against the Spurs, averaging 16.5 points.
Spurs vs. Thunder Spread, Over/Under for WCF Game 1 – Monday, May 18
The Thunder enter Monday’s game as 6.5-point home favorites against the Spurs, returning a 1.38x payout if they win outright, via PrizePicks Team Picks.
Here are the full payouts for the Spurs vs. Thunder game on PrizePicks.
- Spread: Oklahoma City Thunder -6.5 (1.92x payout)
- Over/Under: 220.5 (1.88x payout on Over)
- Game Winner Payout: Spurs 2.77x | Thunder 1.38x
Make your Spurs vs. Thunder prediction on spread or over/under on PrizePicks Team Picks — available in 35 states!
Team Picks data is live at the time of writing and is subject to change.
San Antonio Spurs vs. Oklahoma City Thunder Timeline
Here is the full Spurs vs. Thunder timeline, including the playoff series game-by-game and recent matchup history.
All-Time: Spurs, 106-90
Regular Season: Spurs, 4-1
Series: 0-0
Spurs vs. Thunder Western Conference Finals Timeline, Schedule
- Game 1: Monday, May 18, 8:30 p.m. ET in Oklahoma City
- Game 2: Wednesday, May 20, 8:30 p.m. ET in Oklahoma City
- Game 3: Friday, May 22, 8:30 p.m. ET in San Antonio
- Game 4: Sunday, May 24, 8:00 p.m. ET in San Antonio
- Games 5-7 if necessary
Spurs vs. Thunder Prediction on Spread for NBA Western Conference Finals Game 1
Here are the key game stats and trends behind our Spurs vs. Thunder prediction on the spread for Monday, May 18.
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- The Spurs were 3-1-1 against the spread in their five meetings vs. the Thunder during the 2025-26 regular season.
- According to NBA Advanced Stats, the Spurs have secured the league’s top defensive rating (102.2) in the postseason. San Antonio is yielding just 102.5 PPG during the 2026 NBA Playoffs, ranking fifth.
- San Antonio leads the NBA postseason with 47.5 RPG, while Oklahoma City ranks ninth at 41.1.
- The Spurs have thrived from the perimeter, shooting 38.4% on 3-pointers (second among playoff teams).
- The Thunder have recorded a 12.4% turnover percentage in the NBA postseason.
Make your Spurs vs. Thunder prediction for Game 1 on PrizePicks
Spurs vs. Thunder Picks, Player Stats for PrizePicks: 5/18/26
Here are the top Spurs vs. Thunder picks to target in the NBA Playoffs on PrizePicks for Monday, May 18. Today’s NBA picks for PrizePicks include Shai Gilgeous-Alexander and Stephon Castle.
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Thunder PG Shai Gilgeous-Alexander vs. Spurs: 36.5 Pts + Asts
- Gilgeous-Alexander has registered at least 37 points and assists in four of his eight games this postseason.
- According to databallr, SGA has tallied 33.3 true shot attempts per 100 possessions, which ranks in the 100th percentile.
- The recently crowned 2025-26 NBA MVP has recorded 18.6 potential assists per 100 possessions, sitting in the 79th percentile.
- Gilgeous-Alexander has racked up at least 8 assists in five playoff games.
Add Shai Gilgeous-Alexander to your PrizePicks Lineup now.
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Spurs SG Stephon Castle vs. Thunder: 28.5 Pts + Rebs + Asts
- Castle averaged 31.9 combined points, rebounds, and assists during the Western Conference semifinals vs. the Timberwolves.
- The Spurs’ young star guard has accumulated at least 29 PRA in seven of his 11 games this postseason.
- Castle has the second-best 3-point shooting percentage (44.0%) on the Spurs during the NBA postseason, trailing only SF Julian Champagnie (45.2%).
- Per databallr, Castle has averaged 20.3 potential assists per 100 possessions, a 91st-percentile mark.
Add Stephon Castle to your PrizePicks Lineup now.
NBA Playoffs Live Picks: Spurs vs. Thunder on PrizePicks for Game 1
Here are some in-game angles to target for your Spurs vs. Thunder live picks in tonight’s game.
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- The Spurs and Thunder have both gotten off to strong starts in games. San Antonio averages the second-most PPG (31.5) in the first quarter, while Oklahoma City has put up the fourth-most (30.5) in the opening frame.
- According to NBA Advanced Stats, San Antonio ranks second in pace of play (100.0) this postseason, while Oklahoma City plays at a more methodical pace (95.88), ranking ninth.
- The Thunder lead the NBA Playoffs in fourth-quarter net rating (15.1). Meanwhile, the Spurs rank fifth at 9.2.
- Spurs C Victor Wembanyama certainly hasn’t been as efficient in road games this season, averaging 23.6 PPG on 31.3% shooting from deep compared to 26.4 PPG and 37.9% at home.
Make Spurs vs. Thunder WCF Game 1 Picks on PrizePicks
The Spurs had considerable success against the Thunder during the regular season. As a result, could San Antonio be in line to keep Game 1 of the Western Conference Finals close?
Don’t wait until tip-off — make your Spurs vs. Thunder picks on PrizePicks now and earn real money if you’re right.
Pick players, predict More or Less on their stats, and cash in if you’re right. With Team Picks, you can make predictions on game winners, spreads, and over/unders, now available in 35 states.
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