4 min read

Underdog Promo Code PROPS: Play $5, Get $75 in Bonus Entries for NBA Cup Finals

Justin Carlucci

Justin Carlucci

Last updated: December 18, 2025

NBA Games Christmas: Schedule, Odds, Preview for Thursday, 12/25

What’s good, Props fam! The NBA Cup Finals are here, and if you’re looking to build pick’em slips for tonight’s championship showdown between the Knicks and Spurs, the Underdog promo code makes it very easy to build a bankroll! New users can play just $5 with Underdog promo code PROPS to get $75 in bonus entries. 

Must be 18+ (19+ in AL, NE; 19+ in CO for some games; 21+ in AZ, MA, and VA) and present in a state where Underdog Fantasy operates. Terms apply. See assets.underdogfantasy.com/web/PlayandGetTerms_DFS_.html for details. Offer not valid in MD, MI, OH, and PA. Concerned with your play? Call 1-800-GAMBLER or visit www.ncpgambling.org; NY: Call the 24/7 HOPEline at 1-877-8-HOPENY or Text HOPENY (467369)

Below is everything you need to know about the Underdog bonus code, plus our complete breakdown of Knicks vs Spurs props, and more key info about tonight’s championship.

Check out some popular NBA Cup Finals props on Underdog:

Popular Underdog Props: Underdog Promo Code Dec. 16

Underdog Promo Code & Bonus Entry Offer

Play $5, Get $75 in Bonus Entries
Promo Code: PROPS
✅ $75 in Bonus Entries (basically free plays)
✅ 18+ to play (19+ in AL, NE; 21+ in AZ, MA, VA)
✅ Available in 40+ states

Must be 18+ (19+ in AL, NE; 19+ in CO for some games; 21+ in AZ, MA, and VA) and present in a state where Underdog Fantasy operates. Terms apply. See assets.underdogfantasy.com/web/PlayandGetTerms_DFS_.html for details. Offer not valid in MD, MI, OH, and PA. Concerned with your play? Call 1-800-GAMBLER or visit www.ncpgambling.org; NY: Call the 24/7 HOPEline at 1-877-8-HOPENY or Text HOPENY (467369)

How the Underdog Bonus Code Works

Check out this awesome welcome offer courtesy of Underdog! You can also see our full review of Underdog before you sign up!

  • Step 1: Enter Underdog promo code PROPS when you register at Underdog Fantasy
  • Step 2: Make your first deposit and play at least $5
  • Step 3: Bang (Mike Breen voice)! You get $75 in bonus entries instantly
  • Step 4: Use those $75 bonus entries to build pick’em slips with zero out-of-pocket risk

Your bonus entries are separate from your real money balance. You can build pick’em slips specifically with the $75 in free plays and see if you can turn it into actual winnings. No rollover requirement—just play and see what hits.

Important details:

  • Bonus entries expire 30 days after issuance
  • Must be 18+ (19+ in AL, NE; 21+ in AZ, MA, VA)
  • Available in 40+ states (NOT MD, MI, OH, PA)
  • Winnings from bonus entries are real money you can withdraw

Why this matters for tonight: You get $75 in free plays to test out Underdog’s pick’em slip builder on the NBA Cup Finals. No risk. All upside.

CLAIM YOUR UNDERDOG BONUS ENTRIES NOW!

Must be 18+ (19+ in AL, NE; 19+ in CO for some games; 21+ in AZ, MA, and VA) and present in a state where Underdog Fantasy operates. Terms apply. See assets.underdogfantasy.com/web/PlayandGetTerms_DFS_.html for details. Offer not valid in MD, MI, OH, and PA.

Must be 18+ (19+ in AL, NE; 19+ in CO for some games; 21+ in AZ, MA, and VA) and present in a state where Underdog Fantasy operates. Terms apply. See assets.underdogfantasy.com/web/PlayandGetTerms_DFS_.html for details. Offer not valid in MD, MI, OH, and PA. Concerned with your play? Call 1-800-GAMBLER or visit www.ncpgambling.org; NY: Call the 24/7 HOPEline at 1-877-8-HOPENY or Text HOPENY (467369)

NBA PLAYER PROPS LIVE ODDS

Filters:
Player
Anthony Black
PG ORL @ PHO
Today 5:00 PM ET
- - -
Collin Gillespie
Collin Gillespie
PHO PG ORL @ PHO
Today 5:00 PM ET
- - -
Desmond Bane
SG ORL @ PHO
Today 5:00 PM ET
- - -
Dillon Brooks
Dillon Brooks
PHO SF ORL @ PHO
Today 5:00 PM ET
- - -
Grayson Allen
Grayson Allen
PHO SF ORL @ PHO
Today 5:00 PM ET
- - -
Jalen Green
Jalen Green
PHO SG ORL @ PHO
Today 5:00 PM ET
- - -
Jalen Suggs
SG ORL @ PHO
Today 5:00 PM ET
- - -
Jordan Goodwin
Jordan Goodwin
PHO PG ORL @ PHO
Today 5:00 PM ET
- - -
Mark Williams
Mark Williams
PHO C ORL @ PHO
Today 5:00 PM ET
- - -
Moritz Wagner
C ORL @ PHO
Today 5:00 PM ET
- - - -
Oso Ighodaro
Oso Ighodaro
PHO PF ORL @ PHO
Today 5:00 PM ET
- - - -
Paolo Banchero
PF ORL @ PHO
Today 5:00 PM ET
- - -
Royce O'Neale
Royce O'Neale
PHO PF ORL @ PHO
Today 5:00 PM ET
- - -
Tristan da Silva
PF ORL @ PHO
Today 5:00 PM ET
- - -
Wendell Carter Jr.
C ORL @ PHO
Today 5:00 PM ET
- - -
Adem Bona
C PHI @ NO
Today 7:00 PM ET
- - - -
Andre Drummond
C PHI @ NO
Today 7:00 PM ET
- - -
Bryce McGowens
SG PHI @ NO
Today 7:00 PM ET
- - - -
DeAndre Jordan
C PHI @ NO
Today 7:00 PM ET
- - - - - - - -
Derik Queen
C PHI @ NO
Today 7:00 PM ET
- - -
Dominick Barlow
PF PHI @ NO
Today 7:00 PM ET
- - -
Herbert Jones
SF PHI @ NO
Today 7:00 PM ET
- - -
Jeremiah Fears
PG PHI @ NO
Today 7:00 PM ET
- - -
Jordan Poole
PG PHI @ NO
Today 7:00 PM ET
- - -
Karlo Matković
PF PHI @ NO
Today 7:00 PM ET
- - -
Kelly Oubre Jr.
SF PHI @ NO
Today 7:00 PM ET
- - -
Quentin Grimes
SG PHI @ NO
Today 7:00 PM ET
- - -
Saddiq Bey
PF PHI @ NO
Today 7:00 PM ET
- - -
Trendon Watford
PF PHI @ NO
Today 7:00 PM ET
- - -
Trey Murphy III
SF PHI @ NO
Today 7:00 PM ET
- - -
Tyrese Maxey
PG PHI @ NO
Today 7:00 PM ET
- - -
VJ Edgecombe
SG PHI @ NO
Today 7:00 PM ET
- - -
Zion Williamson
PF PHI @ NO
Today 7:00 PM ET
- - -
Andrew Wiggins
SF MEM @ MIA
Today 52m
- - -
Anfernee Simons
SG DET @ CHI
Today 52m
- - -
Ausar Thompson
SG DET @ CHI
Today 52m
- - -
Bam Adebayo
C MEM @ MIA
Today 52m
- - -
Cade Cunningham
PG DET @ CHI
Today 52m
- - -
Cam Spencer
SG MEM @ MIA
Today 52m
- - -
Caris LeVert
SF DET @ CHI
Today 52m
- - -
Carter Bryant
Carter Bryant
SA SF SAC @ SA
Today 52m
- - - - - - - - -
Cedric Coward
SG MEM @ MIA
Today 52m
- - -
Collin Sexton
PG DET @ CHI
Today 52m
- - -
Daniss Jenkins
PG DET @ CHI
Today 52m
- - -
Davion Mitchell
PG MEM @ MIA
Today 52m
- - -
De'Aaron Fox
De'Aaron Fox
SA PG SAC @ SA
Today 52m
- - -
DeMar DeRozan
SF SAC @ SA
Today 52m
- - -
Devin Carter
PG SAC @ SA
Today 52m
- - -
Devin Vassell
Devin Vassell
SA SG SAC @ SA
Today 52m
- - -
Duncan Robinson
SG DET @ CHI
Today 52m
- - -
Dylan Harper
Dylan Harper
SA PG SAC @ SA
Today 52m
- - -
GG Jackson II
PF MEM @ MIA
Today 52m
- - -
Guerschon Yabusele
PF DET @ CHI
Today 52m
- - - - -
Harrison Barnes
Harrison Barnes
SA SF SAC @ SA
Today 52m
- - -
Isaac Okoro
SF DET @ CHI
Today 52m
- - -
Jaime Jaquez Jr.
SF MEM @ MIA
Today 52m
- - -
Jalen Duren
C DET @ CHI
Today 52m
- - -
Jalen Smith
PF DET @ CHI
Today 52m
- - -
Javonte Green
SG DET @ CHI
Today 52m
- - -
Jaylen Wells
SF MEM @ MIA
Today 52m
- - -
Josh Giddey
SG DET @ CHI
Today 52m
- - -
Julian Champagnie
Julian Champagnie
SA SF SAC @ SA
Today 52m
- - -
Kasparas Jakucionis
PG MEM @ MIA
Today 52m
- - - -
Keegan Murray
PF SAC @ SA
Today 52m
- - -
Keldon Johnson
Keldon Johnson
SA SF SAC @ SA
Today 52m
- - -
Kel'el Ware
C MEM @ MIA
Today 52m
- - - - -
Luke Kornet
Luke Kornet
SA C SAC @ SA
Today 52m
- - - -
Malik Monk
SG SAC @ SA
Today 52m
- - -
Matas Buzelis
SF DET @ CHI
Today 52m
- - -
Maxime Raynaud
C SAC @ SA
Today 52m
- - -
Nique Clifford
SF SAC @ SA
Today 52m
- - -
Norman Powell
SG MEM @ MIA
Today 52m
- - -
Patrick Williams
PF DET @ CHI
Today 52m
- - -
Pelle Larsson
SG MEM @ MIA
Today 52m
- - -
Precious Achiuwa
PF SAC @ SA
Today 52m
- - -
Ron Holland II
SF DET @ CHI
Today 52m
- - - - -
Russell Westbrook
PG SAC @ SA
Today 52m
- - -
Santi Aldama
PF MEM @ MIA
Today 52m
- - - - -
Scotty Pippen Jr.
PG MEM @ MIA
Today 52m
- - - - - - - - -
Stephon Castle
Stephon Castle
SA SG SAC @ SA
Today 52m
- - -
Taylor Hendricks
PF MEM @ MIA
Today 52m
- - -
Tobias Harris
SF DET @ CHI
Today 52m
- - -
Tre Jones
PG DET @ CHI
Today 52m
- - -
Ty Jerome
PG MEM @ MIA
Today 52m
- - -
Tyler Herro
SG MEM @ MIA
Today 52m
- - -
Victor Wembanyama
Victor Wembanyama
SA PF SAC @ SA
Today 52m
- - -
Alperen Sengün
C HOU @ NY
Today 8:30 PM ET
- - -
Amen Thompson
SG HOU @ NY
Today 8:30 PM ET
- - -
Clint Capela
C HOU @ NY
Today 8:30 PM ET
- - - - -
Dorian Finney-Smith
PF HOU @ NY
Today 8:30 PM ET
- - -
Jabari Smith Jr.
PF HOU @ NY
Today 8:30 PM ET
- - -
Jalen Brunson
PG HOU @ NY
Today 8:30 PM ET
- - -
Jose Alvarado
PG HOU @ NY
Today 8:30 PM ET
- - -
Josh Hart
SF HOU @ NY
Today 8:30 PM ET
- - -
Karl-Anthony Towns
PF HOU @ NY
Today 8:30 PM ET
- - -
Kevin Durant
PF HOU @ NY
Today 8:30 PM ET
- - -
Landry Shamet
SG HOU @ NY
Today 8:30 PM ET
- - -
Mikal Bridges
SF HOU @ NY
Today 8:30 PM ET
- - -
Mitchell Robinson
C HOU @ NY
Today 8:30 PM ET
- - -
OG Anunoby
SF HOU @ NY
Today 8:30 PM ET
- - -
Reed Sheppard
PG HOU @ NY
Today 8:30 PM ET
- - -
Tari Eason
SF HOU @ NY
Today 8:30 PM ET
- - -
Showing 5 of 102

Knicks vs Spurs NBA Cup Finals: Building Winning Pick’em Slips on Underdog

Tonight, we have New York (18-7) vs San Antonio (18-7) at T-Mobile Arena in Las Vegas. Knicks -2.5, total 234.5. Let’s dig into more important information.

NBA Cup Finals Game Info

  • Game: San Antonio Spurs (18-7) vs New York Knicks (18-7)
  • Time: 8:30 PM ET, Tuesday, December 16, 2025
  • Location: T-Mobile Arena, Las Vegas
  • TV: Amazon Prime Video
  • Spread: Knicks -2.5
  • Moneyline: Spurs +120, Knicks -140
  • Total: 234.5

What’s at stake: The NBA Cup championship trophy, bragging rights, and $500,000 per player for the winning team ($200,000 for the runner-up). This game doesn’t count in the regular season standings, but the competition is real.

How To Use Underdog Welcome Offer

Here’s the thing: Underdog lets you build Higher/Lower pick’em slips where you decide if a player will go over or under a stat total. These work exactly like player props at sportsbooks, but with a DFS-style twist.

How it works:

  • You pick if a player goes HIGHER or LOWER than their stat line
  • Single-entry picks pay 1x your entry (e.g., $100 entry = $100 profit)
  • Stack multiple picks together for multiplied payouts (2 picks = 3x, 3 picks = 6x, etc.)

Example for tonight: “Knicks control the paint, OG Anunoby dominates the glass, Jalen Brunson facilitates.”

How that builds on Underdog:

  • OG Anunoby HIGHER 4.5 rebounds
  • Jalen Brunson HIGHER 6.5 assists

That’s a coherent narrative, not random props. Each pick feeds the same story.

Best Underdog Props Tonight: Bonus Code Plays

Let’s jump into the good stuff!

OG Anunoby HIGHER 4.5 Rebounds

This is the anchor prop for any Knicks pick’em slip tonight.

OG Anunoby has been dominating the glass in the Knicks’ recent stretch. Over his last 5 games, he’s averaging 10 rebound chances per game—that’s elite volume for a wing player.

OG’s Recent Rebound Performance:

  • Dec 13 vs Orlando: 6 rebounds (40 minutes, NBA Cup semifinals)
  • Dec 9 @ Toronto: 6 rebounds
  • Dec 7 vs Orlando: 7 rebounds
  • Nov 9 vs Brooklyn: 8 rebounds
  • Nov 5 vs Minnesota: 8 rebounds

He’s cleared 4.5 rebounds in every single game in his last 5. Against a Spurs team that attacks the paint with Victor Wembanyama and Jeremy Sochan, the Knicks will need OG crashing the glass hard.

Stephon Castle HIGHER 17.5 Points

Here’s where sharp bettors are moving: Stephon Castle has seen massive usage since returning from injury for the Spurs.

Castle, San Antonio’s rookie guard, has been cooking lately. His usage rate has skyrocketed in recent games, and he’s expected to play heavy minutes in tonight’s NBA Cup Finals with Wembanyama commanding double-teams.

Castle’s Recent Scoring:

  • Averaging 15.1 PPG on the season
  • Posted 26 points on Nov 2 vs Phoenix
  • Posted 22 points on Oct 27 vs Toronto
  • Huge free-throw rate: 4.6 FTA per game (gets to the line consistently)

Against a Knicks defense that ranks middle of the pack in perimeter defense, Castle should see opportunity. If Wembanyama draws help defense in the paint, Castle gets clean looks from three and driving lanes.

Victor Wembanyama Props on Underdog

Wemby just returned from a 12-game absence due to a left calf injury and immediately went off in the semifinals: 22 points, 9 rebounds, 2 blocks in just 21 minutes against OKC.

The beautiful thing about playing on Underdog is that you DO NOT have to make a decison on anything Wemby-related.

Jalen Brunson Props on Underdog

Brunson has been elite in the NBA Cup run. He dropped a vintage performance in the semifinals against Orlando and is the Knicks’ primary offensive engine.

Brunson’s Season Stats:

  • Averaging 25+ PPG and 7+ APG
  • Elite free-throw rate
  • Thrives in big-moment games

He’s been such a great scorer that I’m leaning lower than 6.5 assists.

Good luck, and take advantage of this Underdog Promo Code!

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