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 16, 2025

Jalen Brunson NBA

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
Andrew Nembhard
PG NY @ IND
Today 7:00 PM ET
- - -
Bennedict Mathurin
SG NY @ IND
Today 7:00 PM ET
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Brandon Miller
SF ATL @ CHA
Today 7:00 PM ET
- - -
Dyson Daniels
PG ATL @ CHA
Today 7:00 PM ET
- - -
Ethan Thompson
SG NY @ IND
Today 7:00 PM ET
- - - - - - - - -
Isaiah Jackson
PF NY @ IND
Today 7:00 PM ET
- - - - -
Jalen Brunson
PG NY @ IND
Today 7:00 PM ET
- - -
Jalen Johnson
PF ATL @ CHA
Today 7:00 PM ET
- - -
Jarace Walker
PF NY @ IND
Today 7:00 PM ET
- - - - - -
Jay Huff
C NY @ IND
Today 7:00 PM ET
- - -
Josh Hart
SF NY @ IND
Today 7:00 PM ET
- - -
Karl-Anthony Towns
PF NY @ IND
Today 7:00 PM ET
- - -
Kon Knueppel
SG ATL @ CHA
Today 7:00 PM ET
- - -
LaMelo Ball
PG ATL @ CHA
Today 7:00 PM ET
- - -
Mikal Bridges
SF NY @ IND
Today 7:00 PM ET
- - -
Miles Bridges
SF ATL @ CHA
Today 7:00 PM ET
- - -
Moussa Diabaté
PF ATL @ CHA
Today 7:00 PM ET
- - - - - - - -
Nickeil Alexander-Walker
SG ATL @ CHA
Today 7:00 PM ET
- - - - - - - -
OG Anunoby
SF NY @ IND
Today 7:00 PM ET
- - - -
Onyeka Okongwu
C ATL @ CHA
Today 7:00 PM ET
- - -
Pascal Siakam
PF NY @ IND
Today 7:00 PM ET
- - -
Ryan Kalkbrenner
C ATL @ CHA
Today 7:00 PM ET
- - -
T.J. McConnell
PG NY @ IND
Today 7:00 PM ET
- - - - - - - -
Trae Young
PG ATL @ CHA
Today 7:00 PM ET
- - -
Zaccharie Risacher
SF ATL @ CHA
Today 7:00 PM ET
- - -
Andrew Wiggins
SF MIA @ BKN
Today 7:30 PM ET
- - - -
Bam Adebayo
C MIA @ BKN
Today 7:30 PM ET
- - - -
Danny Wolf
C MIA @ BKN
Today 7:30 PM ET
- - - - - -
Davion Mitchell
PG MIA @ BKN
Today 7:30 PM ET
- - - -
Egor Demin
PG MIA @ BKN
Today 7:30 PM ET
- - - - -
Michael Porter Jr.
SF MIA @ BKN
Today 7:30 PM ET
- - -
Nicolas Claxton
C MIA @ BKN
Today 7:30 PM ET
- - -
Noah Clowney
PF MIA @ BKN
Today 7:30 PM ET
- - -
Norman Powell
SG MIA @ BKN
Today 7:30 PM ET
- - - -
Simone Fontecchio
SF MIA @ BKN
Today 7:30 PM ET
- - - - - -
Terance Mann
PG MIA @ BKN
Today 7:30 PM ET
- - - - - - - - -
Tyler Herro
SG MIA @ BKN
Today 7:30 PM ET
- - - - - - - - -
Ziaire Williams
SF MIA @ BKN
Today 7:30 PM ET
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Aaron Holiday
PG HOU @ NO
Today 8:00 PM ET
- - - - - - -
Ajay Mitchell
PG LAC @ OKC
Today 8:00 PM ET
- - - - - - -
AJ Green
SG TOR @ MIL
Today 8:00 PM ET
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Alexandre Sarr
PF WAS @ SA
Today 8:00 PM ET
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Alex Caruso
SG LAC @ OKC
Today 8:00 PM ET
- - - - - - -
Alperen Sengün
C HOU @ NO
Today 8:00 PM ET
- - -
Amen Thompson
SG HOU @ NO
Today 8:00 PM ET
- - -
Bilal Coulibaly
SG WAS @ SA
Today 8:00 PM ET
- - -
Bobby Portis
PF TOR @ MIL
Today 8:00 PM ET
- - -
Bogdan Bogdanović
SG LAC @ OKC
Today 8:00 PM ET
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Brandon Ingram
SF TOR @ MIL
Today 8:00 PM ET
- - -
Bub Carrington
PG WAS @ SA
Today 8:00 PM ET
- - - - - -
Cason Wallace
PG LAC @ OKC
Today 8:00 PM ET
- - - - -
Chet Holmgren
C LAC @ OKC
Today 8:00 PM ET
- - - - -
CJ McCollum
PG WAS @ SA
Today 8:00 PM ET
- - -
De'Aaron Fox
De'Aaron Fox
SA PG WAS @ SA
Today 8:00 PM ET
- - -
Derik Queen
C HOU @ NO
Today 8:00 PM ET
- - - -
Devin Vassell
Devin Vassell
SA SG WAS @ SA
Today 8:00 PM ET
- - -
Dylan Harper
Dylan Harper
SA PG WAS @ SA
Today 8:00 PM ET
- - -
Gary Trent Jr.
SG TOR @ MIL
Today 8:00 PM ET
- - - -
Harrison Barnes
Harrison Barnes
SA SF WAS @ SA
Today 8:00 PM ET
- - -
Herbert Jones
SF HOU @ NO
Today 8:00 PM ET
- - - -
Immanuel Quickley
PG TOR @ MIL
Today 8:00 PM ET
- - -
Ivica Zubac
C LAC @ OKC
Today 8:00 PM ET
- - - - -
Jabari Smith Jr.
PF HOU @ NO
Today 8:00 PM ET
- - -
Jakob Poeltl
C TOR @ MIL
Today 8:00 PM ET
- - -
Jalen Williams
SF LAC @ OKC
Today 8:00 PM ET
- - - - -
Jamal Shead
PG TOR @ MIL
Today 8:00 PM ET
- - -
Jeremiah Fears
PG HOU @ NO
Today 8:00 PM ET
- - -
John Collins
PF LAC @ OKC
Today 8:00 PM ET
- - - - -
Jordan Poole
PG HOU @ NO
Today 8:00 PM ET
- - -
Jose Alvarado
PG HOU @ NO
Today 8:00 PM ET
- - -
Josh Okogie
SG HOU @ NO
Today 8:00 PM ET
- - - - -
Julian Champagnie
Julian Champagnie
SA SF WAS @ SA
Today 8:00 PM ET
- - - - - - -
Kawhi Leonard
SF LAC @ OKC
Today 8:00 PM ET
- - - - -
Kevin Durant
PF HOU @ NO
Today 8:00 PM ET
- - -
Kevin Porter Jr.
PG TOR @ MIL
Today 8:00 PM ET
- - -
Kris Dunn
PG LAC @ OKC
Today 8:00 PM ET
- - - - -
Kyle Kuzma
PF TOR @ MIL
Today 8:00 PM ET
- - -
Kyshawn George
SF WAS @ SA
Today 8:00 PM ET
- - -
Luguentz Dort
SF LAC @ OKC
Today 8:00 PM ET
- - - - -
Luke Kornet
Luke Kornet
SA C WAS @ SA
Today 8:00 PM ET
- - - - -
Marvin Bagley III
PF WAS @ SA
Today 8:00 PM ET
- - - - - -
Myles Turner
C TOR @ MIL
Today 8:00 PM ET
- - -
Nicolas Batum
PF LAC @ OKC
Today 8:00 PM ET
- - - - - - - -
Ochai Agbaji
SG TOR @ MIL
Today 8:00 PM ET
- - - -
Reed Sheppard
PG HOU @ NO
Today 8:00 PM ET
- - -
Ryan Rollins
SG TOR @ MIL
Today 8:00 PM ET
- - -
Saddiq Bey
PF HOU @ NO
Today 8:00 PM ET
- - -
Sandro Mamukelashvili
PF TOR @ MIL
Today 8:00 PM ET
- - - -
Scottie Barnes
SF TOR @ MIL
Today 8:00 PM ET
- - -
Shai Gilgeous-Alexander
PG LAC @ OKC
Today 8:00 PM ET
- - - - -
Stephon Castle
Stephon Castle
SA SG WAS @ SA
Today 8:00 PM ET
- - -
Steven Adams
C HOU @ NO
Today 8:00 PM ET
- - -
Tre Johnson
SG WAS @ SA
Today 8:00 PM ET
- - - - - -
Trey Murphy III
SF HOU @ NO
Today 8:00 PM ET
- - -
Victor Wembanyama
Victor Wembanyama
SA PF WAS @ SA
Today 8:00 PM ET
- - -
Yves Missi
C HOU @ NO
Today 8:00 PM ET
- - - - - - - - -
Zion Williamson
PF HOU @ NO
Today 8:00 PM ET
- - - -
Anthony Davis
C DET @ DAL
Today 8:30 PM ET
- - -
Ausar Thompson
SG DET @ DAL
Today 8:30 PM ET
- - - -
Cade Cunningham
PG DET @ DAL
Today 8:30 PM ET
- - -
Caris LeVert
SF DET @ DAL
Today 8:30 PM ET
- - -
Cooper Flagg
PF DET @ DAL
Today 8:30 PM ET
- - -
Daniel Gafford
C DET @ DAL
Today 8:30 PM ET
- - - -
Duncan Robinson
SG DET @ DAL
Today 8:30 PM ET
- - -
Isaiah Stewart
PF DET @ DAL
Today 8:30 PM ET
- - -
Jaden Ivey
SG DET @ DAL
Today 8:30 PM ET
- - -
Jalen Duren
C DET @ DAL
Today 8:30 PM ET
- - -
Klay Thompson
SG DET @ DAL
Today 8:30 PM ET
- - - -
Max Christie
SG DET @ DAL
Today 8:30 PM ET
- - - -
Naji Marshall
SF DET @ DAL
Today 8:30 PM ET
- - -
P.J. Washington
PF DET @ DAL
Today 8:30 PM ET
- - -
Ryan Nembhard
PG DET @ DAL
Today 8:30 PM ET
- - - - - - -
Tobias Harris
SF DET @ DAL
Today 8:30 PM ET
- - -
Ace Bailey
SF LAL @ UTA
Today 9:00 PM ET
- - -
Anthony Black
PG ORL @ DEN
Today 9:00 PM ET
- - -
Brandin Podziemski
SG GS @ PHO
Today 9:00 PM ET
- - - - - - -
Bruce Brown
SG ORL @ DEN
Today 9:00 PM ET
- - -
Buddy Hield
SF GS @ PHO
Today 9:00 PM ET
- - - - - - -
Cameron Johnson
PF ORL @ DEN
Today 9:00 PM ET
- - -
Collin Gillespie
Collin Gillespie
PHO PG GS @ PHO
Today 9:00 PM ET
- - -
Deandre Ayton
C LAL @ UTA
Today 9:00 PM ET
- - - - - -
De'Anthony Melton
SG GS @ PHO
Today 9:00 PM ET
- - - - - - -
Desmond Bane
SG ORL @ DEN
Today 9:00 PM ET
- - -
Devin Booker
Devin Booker
PHO SG GS @ PHO
Today 9:00 PM ET
- - -
Dillon Brooks
Dillon Brooks
PHO SF GS @ PHO
Today 9:00 PM ET
- - -
Draymond Green
PF GS @ PHO
Today 9:00 PM ET
- - -
Gabe Vincent
PG LAL @ UTA
Today 9:00 PM ET
- - - - - -
Goga Bitadze
C ORL @ DEN
Today 9:00 PM ET
- - -
Grayson Allen
Grayson Allen
PHO SF GS @ PHO
Today 9:00 PM ET
- - -
Jake LaRavia
PF LAL @ UTA
Today 9:00 PM ET
- - - - - - -
Jamal Murray
PG ORL @ DEN
Today 9:00 PM ET
- - -
Jase Richardson
SG ORL @ DEN
Today 9:00 PM ET
- - - - - - - - -
Jaxson Hayes
C LAL @ UTA
Today 9:00 PM ET
- - - - -
Jett Howard
SG ORL @ DEN
Today 9:00 PM ET
- - - - - - - - -
Jimmy Butler III
SF GS @ PHO
Today 9:00 PM ET
- - -
Jonas Valančiūnas
C ORL @ DEN
Today 9:00 PM ET
- - - -
Jonathan Isaac
PF ORL @ DEN
Today 9:00 PM ET
- - - - - - - - -
Jordan Goodwin
Jordan Goodwin
PHO PG GS @ PHO
Today 9:00 PM ET
- - - - - - - -
Jusuf Nurkić
C LAL @ UTA
Today 9:00 PM ET
- - -
Keyonte George
SG LAL @ UTA
Today 9:00 PM ET
- - -
Kyle Filipowski
C LAL @ UTA
Today 9:00 PM ET
- - - - - - - - -
Lauri Markkanen
PF LAL @ UTA
Today 9:00 PM ET
- - -
LeBron James
SF LAL @ UTA
Today 9:00 PM ET
- - -
Luka Dončić
PG LAL @ UTA
Today 9:00 PM ET
- - -
Marcus Smart
PG LAL @ UTA
Today 9:00 PM ET
- - -
Mark Williams
Mark Williams
PHO C GS @ PHO
Today 9:00 PM ET
- - -
Moses Moody
SG GS @ PHO
Today 9:00 PM ET
- - -
Nikola Jokić
C ORL @ DEN
Today 9:00 PM ET
- - -
Oso Ighodaro
Oso Ighodaro
PHO PF GS @ PHO
Today 9:00 PM ET
- - - - - - -
Paolo Banchero
PF ORL @ DEN
Today 9:00 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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