Underdog Fantasy Bonus details
Underdog Disclaimer: Concerned with your play?
Call 1-800-GAMBLER or visit www.ncpgambling.org; AZ: 1-800-NEXT-STEP (1-800-639-8783) or text NEXT-STEP to 53342; NC: Gambling Problem? Call 1-877-718-5543, visit morethanagame.nc.gov, or call 1-800-GAMBLER; NY: Call the 24/7 HOPEline at 1-877-8-HOPENY or Text HOPENY (467369) Learn more about Underdog Contests and how to identify highly experienced players at www.underdogfantasy.com/rules; Learn more about average results at www.underdogfantasy.com/average-results
Underdog Fantasy Deposit Bonus
If you're looking to dip your toes into the world of fantasy sports with some extra bankroll, Underdog Fantasy is serving up one of the best welcome deals in the game. With their 50% deposit match bonus — up to a whopping $1,000 — new users can get off to a hot start, and with our exclusive promo code "TRUSTNBET", you're locking in the max advantage.So whether you’re eyeing those spicy NBA player pick’ems, building a slick NFL draft, or just want to test your fantasy skills for real cash, this bonus gives you more ammo to fire your shot. Let's break it all down.

Want to find out more about this Sweapstake? We will cover you with our Underdog Fantasy review.
🔥 Quick Rundown of the Bonus
Bonus Type: 50% deposit match
Max Bonus: $1,000 in promotional credits
Minimum Deposit: $10
Turnover Requirement: Must use the full bonus within 14 days
Promo Code: TRUSTNBET (enter this during registration!)
Pros & Cons
- Big Match: 50% match up to $1,000 — not many sites offer that much up front
- Low Barrier to Entry: Minimum deposit of just $10
- Flexible Play: You can use bonus funds across different games and contests
- Winnings Are Yours: Whatever you win from bonus entries is withdrawable
- Fast Bonus Credit: Bonus funds are typically credited within 72 hours
- Not Withdrawable Directly: Bonus funds must be used on the site; they’re not cash
- 14-Day Expiry: You’ve got two weeks to use your bonus funds or they’re gone
- Turnover Requirement: You need to “play through” the full bonus before any winnings become withdrawable
Payment methods for bonus
Bonus rollover period
14 days after bonus received
Valid in following countries
USA
Three steps to catch bonus
Pay out conditions
🎮 How the Bonus Bets Work
Now here’s where you need to play smart. Bonus funds are considered “promotional credits,” which means they’re meant to be used as entry fees into contests — not cashed out directly.
Let’s say you deposit $100 using code TRUSTNBET:
- You’ll receive $50 in bonus funds (50% match)
- You’ll now have $150 total to play with
- That $50 in bonus credit can only be used to enter fantasy contests
- You have 14 days to use it before it expires
- Winnings from bonus entries are yours to keep and can be withdrawn once playthrough conditions are met
Hint
💥 Pro Tip: Use Promo Code "TRUSTNBET"
If you’re serious about snagging this deal, don’t forget this one key move: Use promo code TRUSTNBET when registering.
This unlocks the full deposit match bonus. Without it, you won’t be eligible, and there’s no way to add it afterward. It’s your ticket to the 50% match — simple as that.
For more bonus offers just take a look on our Sportsbook bonus overview.
Bonus Availability by State
Underdog Fantasy isn’t a traditional sportsbook, so it’s allowed in more states — even where standard sports betting is off-limits.
From the legal states map, here’s the deal:
- Most states allow some or all Underdog game types
- You must be 18+ in most states (19+ in AL, NE; 21+ in AZ & MA)
- States like Michigan, Pennsylvania, and Ohio allow Pick'em and Drafts
- Some states don’t allow Pick'em games — check the map before diving in

Example
🧠 Example: How It All Works in Real Life
Here’s a scenario so you can visualize it:
- You sign up with TRUSTNBET
- You deposit $100
- You get $50 in bonus funds
- You enter a Pick'em contest with $10 of your bonus
- You hit on your picks and win $60
That $60 goes into your real money balance. You continue using your bonus funds for other contests until you’ve played through all $50 within 14 days. At that point, all winnings are fair game to cash out.
Conclusion
Underdog Fantasy knocks it out of the park with this generous bonus offer. The TRUSTNBET code adds serious value to your first deposit, giving you more chances to draft, pick, and win.
Is it perfect? Not quite — the 14-day window adds a little pressure — but overall, the bonus is a great way to start with extra firepower.
We rate Underdog a strong 9.2 out of 10 — a top-tier option, especially if you're in a state where traditional sportsbooks aren’t legal yet.
So what are you waiting for? Smash that TRUSTNBET code, make your first deposit, and start building your fantasy bankroll today!