We’ve got the NBA Cup Championship set for Tuesday night in Las Vegas, and it doesn’t get much better than this. Victor Wembanyama and the San Antonio Spurs face off against Jalen Brunson and the New York Knicks with a trophy on the line. If you’re signing up at BetMGM Sportsbook for the first time, the BetMGM promo code unlocks one of the best welcome offers in the industry. New users can claim up to $1,500 back in Bonus Bets if their first wager loses. This BetMGM welcome offer is fantastic, and tonight’s high-profile NBA Cup finals matchup between the Knicks and Spurs is a great game to get started!
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Below is everything new bettors need to know about the BetMGM bonus code, plus a full Knicks vs Spurs NBA Cup Finals preview, betting lines, and top player props for Tuesday night.
BetMGM Promo Code Information
- First Bet Offer for New Customers Only
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New users can activate BetMGM’s flagship welcome offer by registering through the official promo link. Still unsure? Check out our full review of BetMGM Sportsbook.
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Knicks vs Spurs NBA Cup Championship Preview
The Championship is set. One game to decide the NBA Cup.
The New York Knicks (18–7) meet the San Antonio Spurs (18–7) in the NBA Cup Final at T-Mobile Arena in Las Vegas. It’s a star-driven matchup featuring two of the league’s brightest young centerpieces: Jalen Brunson vs Victor Wembanyama.
Oddsmakers give the Knicks a slight edge, due in part to their experience and the expectation that Wembanyama will remain on a minutes restriction in just his second game back after a 12-game absence.
Still, the Spurs have been one of the league’s most dangerous teams all season—and Las Vegas fans have clearly embraced Wemby and company as crowd favorites.
NBA Cup Championship Odds (via BetMGM)
| Matchup | Spread | Total | Moneyline |
| Knicks vs Spurs | NYK -2.5 | 223.5 | NYK -135 / SA +115 |
(Lines subject to change)
How to Watch Knicks vs Spurs
- Tipoff: 8:30 PM ET, Tuesday, December 16
- Location: T-Mobile Arena, Las Vegas
- TV/Streaming: Amazon Prime Video
- Once you have the game on, fire up your new BetMGM welcome offer!
Knicks on a Hot Streak
New York has won nine of its last ten games, powered by elite shot-making from Jalen Brunson and a more polished offense under head coach Mike Brown. Karl-Anthony Towns has thrived in his role, and the Knicks’ improved bench depth has been a major factor during their NBA Cup run.
Brunson enters the final on a torrid stretch, scoring 30+ points in four straight games, including a 40-point performance in the semifinals against Orlando.
Spurs Rising Fast
San Antonio’s growth has been one of the league’s biggest stories. Even without Wembanyama, the Spurs went 10–2 during his absence, and his return has only amplified their ceiling.
In the semifinals, Wembanyama’s presence completely altered the Thunder’s offense, helping snap Oklahoma City’s 16-game win streak. The Spurs’ defense, length, and discipline have made them a nightmare matchup on a neutral floor.
Top BetMGM Player Props for the NBA Cup Final
Here are some of the most popular Knicks vs Spurs player props available at BetMGM for Tuesday night.
Knicks Player Props on BetMGM
Jalen Brunson – Over 30.5 Points
Brunson is averaging 28.8 points per game this season and has cleared 30 points in four straight contests. San Antonio limits threes, but Brunson’s elite midrange scoring and foul-drawing ability make him one of the safest high-usage options on the board.
Karl-Anthony Towns – Over 20.5 Points
Towns has flourished in the Knicks’ new offensive system, averaging over 22 points per game. If San Antonio keeps Wembanyama off the floor for extended stretches, Towns’ size advantage becomes critical.
Spurs Player Props on BerMGM
Victor Wembanyama – Under 22.5 Points
Wembanyama is expected to remain on a minutes restriction, which makes his points prop tricky. While his impact is massive even in limited time, betting the under can make sense if San Antonio prioritizes having him fresh late.
Stephon Castle – Over 17.5 Points
Castle has been one of the breakout stars of the NBA Cup and is a leading candidate for MVP if the Spurs win. He’s averaging over 18 points per game and thrives in high-leverage moments.
Final Thoughts: NBA Cup Championship Betting
The Knicks bring experience, scoring punch, and playoff-tested veterans. The Spurs bring length, defensive chaos, and the most unique player in basketball. Whether this game previews the 2026 NBA Finals or simply crowns a new NBA Cup champion, it’s one of the most compelling matchups of the season.
If you’re betting on the NBA Cup Final, the BetMGM promo code offers a low-risk way to get involved—especially with player props and same-game parlays on the board.
