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Best Stephon Castle prop bet for Thunder vs. Spurs Game 3 on Friday 5/22/26

Best Stephon Castle prop bet for Thunder vs. Spurs Game 3 on Friday 5/22/26

Published:

By: Cooper Albers

The San Antonio Spurs have a chance to recapture the series lead on Friday, hosting the Oklahoma City Thunder for Game 3 of the Western Conference Finals at Frost Bank Center.

The Spurs neutralized the Thunder’s home-court advantage with a double-overtime upset in the series opener, thanks in large part to a mythical performance from superstar Victor Wembanyama. But it’ll take more than one man to conquer the defending champs.  Following Wednesday’s Game 2 loss, San Antonio should continue leaning on its incredible supporting cast — including second-year standout Stephon Castle — as the series shifts to the Alamo City.

Tipoff is at 8:40 p.m. ET. San Antonio is a slight 1.5-point home favorite with -125 moneyline odds, while Oklahoma City is a rare +105 underdog. 

Ahead of Game 3, let’s dive into the top Stephon Castle prop bet on DraftKings Sportsbook.


Best Stephon Castle Prop Bet for Thunder vs. Spurs Game 3

Best Bet: Stephon Castle Over 30.5 Points + Rebounds + Assists (-116)

Last season’s Rookie of the Year has flourished in his first taste of playoff action. Serving as San Antonio’s number two option, Stephon Castle is averaging 20.1 points, a team-high 6.6 assists, and five rebounds per game — good for 31.7 combined points, rebounds, and assists (PRA). 

Castle, 21, has raised his production to another level in the Western Conference Finals, with De’Aaron Fox (Questionable) sidelined due to an ankle injury. The 6-foot-6 guard has poured in an average of 36 PRA — 21 points, 9.5 assists, and 5.5 rebounds — across Games 1 and 2 against the Thunder. (Just ignore his turnover numbers.)

Even if Fox — along with Dylan Harper (Questionable) — suits up Friday night, Castle remains a strong candidate to surpass his 30.5 PRA line. With a full-strength back court in Game 6 against the Timberwolves, Castle erupted for 32 points, 11 rebounds, and six assists (49 PRA) in the series-clinching win. It was his second performance of the playoffs in which he cleared this prop on points alone.

With a chance to jump ahead in the series at home, Castle should play with poise and remain an integral piece of San Antonio’s attack in Game 3. And considering Wembanyama’s otherworldly gravity on both ends, Castle should find room to clear 30.5 PRA for the third straight contest.

I am a promoter at DraftKings and am also an avid fan and user and may sometimes play on my personal account in the games that I offer advice on. Although I have expressed my personal view on the games and strategies above, they do not necessarily reflect the view(s) of DraftKings and do not constitute a representation that any particular strategy will guarantee success. All customers should use their own skills and judgment in building lineups. I may also deploy different players and strategies than what I recommend above. I am not an employee of DraftKings and do not have access to any non-public information.