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
Alexandre Sarr
PF LAL @ WAS
Today 7:00 PM ET
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Austin Reaves
SG LAL @ WAS
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Bilal Coulibaly
SG LAL @ WAS
Today 7:00 PM ET
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Bub Carrington
PG LAL @ WAS
Today 7:00 PM ET
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Deandre Ayton
C LAL @ WAS
Today 7:00 PM ET
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Jake LaRavia
PF LAL @ WAS
Today 7:00 PM ET
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Justin Champagnie
SG LAL @ WAS
Today 7:00 PM ET
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Kyshawn George
SF LAL @ WAS
Today 7:00 PM ET
- -
LeBron James
SF LAL @ WAS
Today 7:00 PM ET
- -
Luka Dončić
PG LAL @ WAS
Today 7:00 PM ET
- -
Marcus Smart
PG LAL @ WAS
Today 7:00 PM ET
- -
Tre Johnson
SG LAL @ WAS
Today 7:00 PM ET
- - - -
Anfernee Simons
SG SAC @ BOS
Today 7:30 PM ET
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Anthony Black
PG TOR @ ORL
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Baylor Scheierman
SG SAC @ BOS
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Brandon Ingram
SF TOR @ ORL
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Cam Spencer
SG MEM @ NO
Today 7:30 PM ET
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Cedric Coward
SG MEM @ NO
Today 7:30 PM ET
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Collin Murray-Boyles
PF TOR @ ORL
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DeMar DeRozan
SF SAC @ BOS
Today 7:30 PM ET
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Deni Avdija
SF POR @ NY
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Derik Queen
C MEM @ NO
Today 7:30 PM ET
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Derrick White
SG SAC @ BOS
Today 7:30 PM ET
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Desmond Bane
SG TOR @ ORL
Today 7:30 PM ET
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Domantas Sabonis
C SAC @ BOS
Today 7:30 PM ET
- -
Donovan Clingan
C POR @ NY
Today 7:30 PM ET
- -
GG Jackson II
PF MEM @ NO
Today 7:30 PM ET
- -
Herbert Jones
SF MEM @ NO
Today 7:30 PM ET
- -
Immanuel Quickley
PG TOR @ ORL
Today 7:30 PM ET
- -
Jalen Brunson
PG POR @ NY
Today 7:30 PM ET
- -
Jalen Suggs
SG TOR @ ORL
Today 7:30 PM ET
- -
Jamal Shead
PG TOR @ ORL
Today 7:30 PM ET
- -
Jaren Jackson Jr.
PF MEM @ NO
Today 7:30 PM ET
- -
Jaylen Wells
SF MEM @ NO
Today 7:30 PM ET
- -
Jeremiah Fears
PG MEM @ NO
Today 7:30 PM ET
- -
Jock Landale
C MEM @ NO
Today 7:30 PM ET
- -
John Konchar
SG MEM @ NO
Today 7:30 PM ET
- - - - -
Jose Alvarado
PG MEM @ NO
Today 7:30 PM ET
- - - - -
Josh Hart
SF POR @ NY
Today 7:30 PM ET
- -
Jrue Holiday
PG POR @ NY
Today 7:30 PM ET
- -
Karl-Anthony Towns
PF POR @ NY
Today 7:30 PM ET
- -
Kentavious Caldwell-Pope
SG MEM @ NO
Today 7:30 PM ET
- - - -
Landry Shamet
SG POR @ NY
Today 7:30 PM ET
- - - - - -
Mikal Bridges
SF POR @ NY
Today 7:30 PM ET
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Miles McBride
PG POR @ NY
Today 7:30 PM ET
- -
Mitchell Robinson
C POR @ NY
Today 7:30 PM ET
- -
Neemias Queta
C SAC @ BOS
Today 7:30 PM ET
- -
OG Anunoby
SF POR @ NY
Today 7:30 PM ET
- -
Paolo Banchero
PF TOR @ ORL
Today 7:30 PM ET
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Payton Pritchard
PG SAC @ BOS
Today 7:30 PM ET
- -
Precious Achiuwa
PF SAC @ BOS
Today 7:30 PM ET
- -
RJ Barrett
SG TOR @ ORL
Today 7:30 PM ET
- -
Russell Westbrook
PG SAC @ BOS
Today 7:30 PM ET
- -
Saddiq Bey
PF MEM @ NO
Today 7:30 PM ET
- -
Sam Hauser
SF SAC @ BOS
Today 7:30 PM ET
- -
Sandro Mamukelashvili
PF TOR @ ORL
Today 7:30 PM ET
- -
Scottie Barnes
SF TOR @ ORL
Today 7:30 PM ET
- -
Shaedon Sharpe
SG POR @ NY
Today 7:30 PM ET
- -
Toumani Camara
SF POR @ NY
Today 7:30 PM ET
- -
Trey Murphy III
SF MEM @ NO
Today 7:30 PM ET
- -
Tristan da Silva
PF TOR @ ORL
Today 7:30 PM ET
- -
Vince Williams Jr.
SG MEM @ NO
Today 7:30 PM ET
- -
Wendell Carter Jr.
C TOR @ ORL
Today 7:30 PM ET
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Yves Missi
C MEM @ NO
Today 7:30 PM ET
- -
Zach LaVine
SG SAC @ BOS
Today 7:30 PM ET
- -
Zion Williamson
PF MEM @ NO
Today 7:30 PM ET
- -
Brook Lopez
C LAC @ DEN
Today 9:00 PM ET
- -
Bruce Brown
SG LAC @ DEN
Today 9:00 PM ET
- -
Collin Gillespie
Collin Gillespie
PHO PG CLE @ PHO
Today 9:00 PM ET
- -
Craig Porter Jr.
PG CLE @ PHO
Today 9:00 PM ET
- - - - -
De'Andre Hunter
SF CLE @ PHO
Today 9:00 PM ET
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Dean Wade
PF CLE @ PHO
Today 9:00 PM ET
- -
Dillon Brooks
Dillon Brooks
PHO SF CLE @ PHO
Today 9:00 PM ET
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Donovan Mitchell
SG CLE @ PHO
Today 9:00 PM ET
- -
Grayson Allen
Grayson Allen
PHO SF CLE @ PHO
Today 9:00 PM ET
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Ivica Zubac
C LAC @ DEN
Today 9:00 PM ET
- -
Jalen Pickett
SG LAC @ DEN
Today 9:00 PM ET
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Jamal Murray
PG LAC @ DEN
Today 9:00 PM ET
- -
James Harden
SG LAC @ DEN
Today 9:00 PM ET
- -
Jarrett Allen
C CLE @ PHO
Today 9:00 PM ET
- -
Jaylon Tyson
SF CLE @ PHO
Today 9:00 PM ET
- -
John Collins
PF LAC @ DEN
Today 9:00 PM ET
- -
Jonas Valančiūnas
C LAC @ DEN
Today 9:00 PM ET
- -
Jordan Goodwin
Jordan Goodwin
PHO PG CLE @ PHO
Today 9:00 PM ET
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Kawhi Leonard
SF LAC @ DEN
Today 9:00 PM ET
- -
Kris Dunn
PG LAC @ DEN
Today 9:00 PM ET
- -
Mark Williams
Mark Williams
PHO C CLE @ PHO
Today 9:00 PM ET
- -
Nae'Qwan Tomlin
PF CLE @ PHO
Today 9:00 PM ET
- - - - - - -
Oso Ighodaro
Oso Ighodaro
PHO PF CLE @ PHO
Today 9:00 PM ET
- - - - - - -
Peyton Watson
SF LAC @ DEN
Today 9:00 PM ET
- -
Royce O'Neale
Royce O'Neale
PHO PF CLE @ PHO
Today 9:00 PM ET
- -
Ryan Dunn
Ryan Dunn
PHO SF CLE @ PHO
Today 9:00 PM ET
- - - - - - -
Sam Merrill
SG CLE @ PHO
Today 9:00 PM ET
- -
Spencer Jones
PF LAC @ DEN
Today 9:00 PM ET
- - - - - - -
Tim Hardaway Jr.
SF LAC @ DEN
Today 9:00 PM ET
- -
Ace Bailey
SF BKN @ UTA
Today 9:30 PM ET
- -
Danny Wolf
C BKN @ UTA
Today 9:30 PM ET
- - - -
Egor Demin
PG BKN @ UTA
Today 9:30 PM ET
- -
Jusuf Nurkić
C BKN @ UTA
Today 9:30 PM ET
- -
Keyonte George
SG BKN @ UTA
Today 9:30 PM ET
- -
Michael Porter Jr.
SF BKN @ UTA
Today 9:30 PM ET
- -
Nicolas Claxton
C BKN @ UTA
Today 9:30 PM ET
- -
Terance Mann
PG BKN @ UTA
Today 9:30 PM ET
- -
Al Horford
C DET @ GS
Today 10:00 PM ET
- -
Ausar Thompson
SG DET @ GS
Today 10:00 PM ET
- -
Brandin Podziemski
SG DET @ GS
Today 10:00 PM ET
- -
Buddy Hield
SF DET @ GS
Today 10:00 PM ET
- - - - -
Cade Cunningham
PG DET @ GS
Today 10:00 PM ET
- -
De'Anthony Melton
SG DET @ GS
Today 10:00 PM ET
- -
Draymond Green
PF DET @ GS
Today 10:00 PM ET
- -
Duncan Robinson
SG DET @ GS
Today 10:00 PM ET
- -
Gui Santos
SF DET @ GS
Today 10:00 PM ET
- - - - -
Isaiah Stewart
PF DET @ GS
Today 10:00 PM ET
- -
Jalen Duren
C DET @ GS
Today 10:00 PM ET
- -
Moses Moody
SG DET @ GS
Today 10:00 PM ET
- -
Quinten Post
C DET @ GS
Today 10:00 PM ET
- -
Ron Holland II
SF DET @ GS
Today 10:00 PM ET
- - - - - -
Stephen Curry
PG DET @ GS
Today 10:00 PM ET
- -
Tobias Harris
SF DET @ GS
Today 10:00 PM ET
- -
Will Richard
SG DET @ GS
Today 10:00 PM ET
- - - - -
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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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