Underdog Promo Code TOPACTION: Play $5, Get $50 for Spurs vs. Knicks NBA Finals

Underdog Promo Code TOPACTION: Play $5, Get $50 for Spurs vs. Knicks NBA Finals article feature image
2 min read

San Antonio Spurs vs. New York Knicks Game 3 takes center stage on Monday, June 8, 2026 at 8:30 p.m. ET on ABC. Underdog gives you a quick start with Play $5, Get $50 in Bonus Entries when you use the Underdog promo code TOPACTION.

Enter the Underdog bonus code TOPACTION at sign-up, get a $5 play in, then put the extra entries to work building more NBA picks for your contests or any sport you prefer.

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Underdog Promo Code TOPACTION: Offer Details

The newest Underdog promo code is TOPACTION and unlocks $50 in fantasy bonus entries when you play your $5 first entry. Underdog is a leading DFS platform available in AL, AK, AR, CA, DC, FL, GA, IL, IN, KS, ME, MS, MN, NE, NM, NC, ND, OK, OR, RI, SC, SD, TX, VT, VA, UT, WI, and WY.

It’s designed for DFS players who prefer pick’em-style entries and want more chances on the same slate without increasing what they put in to start. For Spurs vs. Knicks, that’s useful because single-game cards can swing quickly, and extra entries let you try different builds in the fantasy app.

The timing lines up well for a high-attention slate like Monday's 8:30 p.m. ET tip-off of Game 3 of the NBA Finals on ABC, when you’re often building right up to lock. Use those bonus entries to stay flexible around late injury updates, lineup shuffles, and 1-1 matchups instead of relying on one “perfect” card. The offer is straightforward: $50 in bonus entries after a $5 play.

How to Use Underdog Offer on Spurs vs. Knicks Game 3

If I enter a $5 pick’em contest on San Antonio Spurs vs. New York Knicks Game 3 (Monday, June 8, 8:30 p.m. ET), I start by signing up and entering the Underdog promo code TOPACTION. That $5 entry is the qualifier, and once it posts, Underdog credits $50 in fantasy bonus entries to my account to use on future eligible contests.

Now the math on outcomes stays clean. If my $5 Spurs vs. Knicks entry returns 2x on the contest payout structure, I receive $10 back total (including entry fee). If it does not cash, I lose the $5 entry fee, and I still unlock $50 in fantasy bonus entries from the offer after the qualifying play posts. From there, I can use that $50 as contest-only entry credit on a separate eligible contest, like five $10 entries across different Spurs-Knicks builds (or ten $5 entries) so one game script doesn’t decide my whole night.

How to Sign Up with Underdog Promo Code TOPACTION

  1. Tap this Underdog sign-up link to start registration in your state.
  2. Create your account and enter Underdog bonus code TOPACTION.
  3. Complete identity verification and log in.
  4. Deposit at least $10 using your preferred payment method.
  5. Enter your first $5 fantasy entry for San Antonio Spurs vs. New York Knicks to trigger the $50 in fantasy 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. Offer not valid in MD, MI, NJ, NY, OH, and PA. Concerned with your play? Call 1-800-MY-RESET or 1-800-GAMBLER or visit www.ncpgambling.org; AZ: 1-800-NEXT-STEP (1-800-639-8783) or text NEXT-STEP to 53342; NY: Call the 24/7 HOPEline at 1-877-8-HOPENY or Text HOPENY (467369).

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About the Author

Chris started his career in the sports betting industry in 2022, writing commercial content and evergreen pieces on multiple sites. He is an alumnus of Texas Christian University and the University of Texas and an avid fan of TCU, Texas, and Seattle sports teams. Currently, Chris writes commercial top stories and edits team pages.

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