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.
This article has been Fact Checked by Mark Strotman | October 12, 2026
Underdog Promo Code Play $5 Get $50 Bonus Details
| 🎁 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 |
| ✅ Promo Last Verified | October 12, 2026 |
Bills vs. Rams Pick
Buffalo visits Los Angeles on Monday, October 12 at 8:15 p.m. ET at SoFi Stadium, on ESPN and ABC. The Bills (3-1) are coming off a 29-26 loss to New England, and the Rams (2-2) beat Philadelphia 24-20.
| Market | Reference line |
|---|---|
| Spread | Rams -2.5 to -3.5 |
| Moneyline | Rams about -148 to -181, Bills about +124 to +146 |
| Total | 54.5 points |
| Josh Allen passing yards | 244.5 to 249.5 |
| Josh Allen rushing yards | 36.5 |
| Josh Allen anytime TD | -125 |
| Blake Corum rushing yards | 29.5 |
Spread, total and moneyline are consensus sportsbook lines. The player props are sportsbook lines. Underdog’s own lines will differ, so check the app before you build an entry.
Important For a Pick’em Entry
Allen’s rushing. Allen has scored a rushing touchdown in all four games and has seven on the season. That is why his rushing and touchdown lines matter more than his passing line.
Allen’s turnovers. He was responsible for five of Buffalo’s seven turnovers over the last two games. The Rams have a strong pass defense, so passing-yards entries carry more risk than usual.
Stafford’s workload. He has 106 attempts and 707 passing yards over the last two games. A run-heavy script with Kyren Williams and Corum could pull his numbers down.
Rams defense. It ranks second in total yards allowed and is still missing Myles Garrett.
Buffalo’s offense. The Bills lead the league in explosive-play rate through four weeks.
Shootout history. The last meeting was a 44-42 Rams win, with Allen and Stafford combining for 662 passing yards. Check the final inactives before you lock anything in.
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.
How Underdog Works
Underdog is a fantasy sports game of skill. You pick two or more player stat lines, call each one higher or lower, and combine them into one entry. Each extra pick raises the payout multiplier, but every pick must hit for the entry to pay.
Depending on your state, the format is called Pick’em or Champions. Champions is the peer-to-peer version, where your roster competes against other entries and payouts depend on where you finish.
Other formats include Ladders, Streaks and Best Ball. Best Ball drafts once and sets your lineup automatically for the rest of the season.
Where Is Underdog Legal?
Availability and contest format depend on your state. Pick’em is standard in most states. Champions applies in others, including California, Florida and Massachusetts. Minimum age also varies by state. Confirm both in the app before you register.
Underdog Promo Code FAQs
What is the Underdog promo code?
The code is GAM. It gives new users $50 in bonus entries after a qualifying $5 entry settles.
Do I need to enter the code manually?
Enter GAM at signup so it attaches to your account before you play.
How do I get the $50 in bonus entries?
Register with GAM, add funds, and play a $5 entry. The bonus entries arrive once that entry settles.
Is Underdog legal where I live?
It depends on your state. The app shows what applies to you at signup.
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, at no extra cost to you.
Risk Warning: Gambling carries real financial risk. Only play what you can afford to lose. Odds and promotions change. Past results don’t predict future outcomes. Always confirm terms with the operator. Nothing here is professional or financial advice.
Responsible Gambling: You must be 18+ (or the legal age in your jurisdiction). Gambling problem? Call or text 1-800-GAMBLER.
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