Underdog promo code DIMERS: $75 bonus expanded into CA for Thursday Night Football
Last updated: Dec 18, 2025, 9:45PM | Published: Dec 18, 2025, 9:45PM
Underdog Fantasy is now live across California, continuing to expand operations in this key West Coast market. As the popular DFS provider gains traction in the Golden State, Underdog is celebrating by offering one of the most unique welcome packages available. By signing up with the Underdog promo code "DIMERS", new players secure a Play $5, Get $75 in Bonus Entries deal.
Underdog Promo Code Details: $75 Bonus with "DIMERS"
Review the Underdog Promo Code's updated terms and conditions here.
For players registering this Thursday, December 18, the launch offer remains fully active. The promotion is designed to lower the barrier of entry for new accounts by providing immediate value. By using the Underdog promo code DIMERS, new users unlock a distinct benefit:
Play $5, Get $75: Upon a minimum play of just $5, players receive $75 in bonus entries to use on the platform.
Tonight's Top Opportunity: Rams vs. Seahawks
The official activation of the Underdog promo code comes as the NFL season heats up with critical Week 15 action. California fans can utilize their qualifying $5 entry on tonight’s Thursday Night Football matchup to trigger the $75 bonus immediately.
Thursday Night Football: December 18, 2025
| Matchup | Time | Venue | Spread | Moneyline |
|---|---|---|---|---|
| Rams vs. Seahawks | 8:15 PM ET | Lumen Field | Rams -1.5 | Rams -108, Seahawks -108 |
By using the Underdog promo code DIMERS to place a $5 entry on this game—featuring the Los Angeles Rams in a pivotal divisional clash—accounts will be credited with $75 in bonus entries. This provides a substantial bankroll for the remainder of the NFL season.
All odds above subject to change, and provided for informational purposes.
How the Underdog Promo Code Works:
Unlike traditional deposit matches, this Underdog promo code offer is designed for instant engagement. The bonus coverage period begins the moment a player places their first entry. Once the $5 entry is placed—perhaps on the Rams to cover against the Seahawks in tonight's 8:15 PM ET matchup—the $75 in bonus entries is credited to the account, regardless of the entry's outcome.
Registration and Eligibility:
The offer is available to new players aged 18+ (19+ in AL, NE; 21+ in AZ, MA) who are physically located within California or other eligible states.
Sign Up: Users must register via the Underdog Fantasy site or app.
Code: Enter the Underdog promo code DIMERS when prompted during registration.
Play: A $5 entry is required to activate the $75 bonus.
Underdog Fantasy operates as a Daily Fantasy Sports (DFS) provider, offering a legal and exciting way for fans in California to engage with their favorite teams.
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, NJ, NY, OH, PA, and WA. 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).
