Use Underdog promo code GAM to Play $5, Get $50 in bonus entries. See how Underdog’s Pick’em contests work, plus terms and how to claim.
Underdog is a fantasy sports game of skill built around fast, simple Pick’em contests rather than a traditional roster grind. Choose whether a player goes higher or lower than a projected stat line, stack a few picks into one entry, and you’re in. New customers get $50 in bonus entries when they play $5 with code GAM.
Underdog Promo Code Details (August 2026)
| 🎁 Underdog Promo Code | GAM |
| 🎯 New Customer Offer | Play $5, Get $50 in Bonus Entries |
| 🎮 Offer Type | Play and Get |
| 🏈 Contest Types | Pick’em, Drafts (Ladders, Streaks), Best Ball |
| 📱 Platform | Mobile app (iOS and Android) plus desktop |
How to Claim the Underdog Promo Code
- Tap the link on this page to open Underdog.
- Register your account with your name, email, date of birth, and address.
- Enter promo code GAM during signup to lock in the offer.
- Add funds using a supported payment method.
- Place a qualifying $5 entry.
- Once that entry settles, Underdog credits $50 in bonus entries to your account.
Bonus entries need to be used within the stated turnover window, so it’s worth checking the current terms in the app once you claim the offer rather than letting them sit unused.
Available to new customers in eligible states. Bonus entries carry a playthrough requirement and are typically void after 14 days if unused. Bonus entry stakes are not returned with winnings, only net profit is credited. T&Cs apply.
What Is Underdog?
Underdog is a fantasy sports game of skill. Instead of drafting a full roster under a salary cap, you choose two to five player stat projections and call each one higher or lower, then combine them into a single entry. Stacking more picks raises the potential payout multiplier, but every leg has to hit for the full entry to pay out.
Depending on where you’re located, this format is known as Pick’em or Champions. Both work the same way at their core, Champions is Underdog’s peer-to-peer version where your roster of two to eight athletes competes against other entries in a tournament, with payouts based on how you rank relative to the field.
Other Ways to Play Underdog
Pick’em isn’t the only format on Underdog. A few others worth knowing about:
- Ladders – Make three to five picks and climb progressively bigger payouts as each one hits, win a little on a solid night, a lot on a great one.
- Streaks – String together 11 correct picks in a row for a shot at a much larger multiplier. Every Streak starts with two picks, and each correct pick unlocks the next one.
- Deal Reveal – Pick a player from nine options to have a discount applied, with the discount amount randomized.
- Best Ball Drafts – Draft once, and Underdog automatically sets your optimal lineup each week for the rest of the season, popular for season-long NFL play without the weekly lineup management.
Where Is Underdog Available?
Underdog operates across a wide footprint of states, though the exact contest formats available can vary by location. Pick’em is the standard format in most states, while Champions is the format used in others, including California, Florida, and Massachusetts among them. Always confirm which format and offer apply in your state before you register.
👍 Underdog Pros and Cons
What we liked:
- Low barrier to entry, a $5 qualifying entry is one of the more accessible thresholds around
- Multiple formats beyond Pick’em, including Ladders, Streaks, and Best Ball
- Fixed payout multipliers instead of shifting lines, easier to know what you’re playing for going in
- Built-in play management tools, including entry limits and self-exclusion options
Worth knowing:
- Prize pools tend to run smaller than the largest fantasy platforms
- Fewer recurring promotions for existing customers compared to some competitors
- Bonus entries have a limited window to use before they’re forfeited
- Contest format (Pick’em vs. Champions) depends on your state
FAQ: Underdog Promo Code
What is the current Underdog promo code?
The current code is GAM, which unlocks Play $5, Get $50 in Bonus Entries for new customers.
How do I claim the $50 in bonus entries?
Register with code GAM, add funds, and place one qualifying $5 entry. Underdog credits the $50 in bonus entries once that entry settles.
Do I need to win my first entry to get the bonus?
No. The bonus entries are credited once your qualifying entry settles, regardless of the outcome.
What’s the difference between Pick’em and Champions?
They’re the same core game with different names depending on your state. Champions is the peer-to-peer tournament format, where your roster competes against other entries rather than a fixed payout table.
How long do I have to use my bonus entries?
Bonus entries are typically subject to a 14-day turnover window, after which any unused portion is void. Check the current terms in the app when you claim the offer.
Looking to Try a Casino Site Too?
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Editorial & Affiliate Disclosure
Our recommendations are chosen independently by our editorial team. Some articles may include paid partnerships, but this never influences our reviews or advice. We may earn a commission if you sign up through links on this site — this doesn’t affect the price you pay.
Risk Warning
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Responsible Gambling
You must be 18+ (or the legal age in your jurisdiction) to gamble. Betting isn’t legal everywhere, it’s your responsibility to check the laws where you live.
If gambling stops being fun, help is available:
National Council on Problem Gambling: 1-800-GAMBLER
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