Underdog Fantasy is one of the most popular daily fantasy sports apps in the country, and its current sign-up offer gives new users a strong head start. By making a $5 qualifying entry after depositing at least $10, new players receive $50 in bonus entries credited directly to their account. This page covers everything you need to know about the Underdog promo code, how to claim the offer, and what to do once those bonus entries land in your account.
Current Underdog Fantasy Sign-Up Offer
The current Underdog welcome offer is structured as a play-and-get promotion. New users who deposit at least $10 and place a $5 entry receive $50 in bonus entries. The bonus is credited regardless of whether that qualifying entry wins or loses, which removes all uncertainty from the process. You get the $50 in bonus entries either way.
The $50 in bonus entries can be used on any Underdog contest type, including pick’em contests and Best Ball tournaments. This flexibility is one of the best aspects of the offer — some DFS bonuses restrict you to a single contest format, but Underdog lets you apply the value wherever it makes sense for how you like to play.
Bonus entries are non-withdrawable directly. Any winnings earned from bonus entries are withdrawable once settled. Bonus entries must be used within 14 days of being credited. Any unused portion is forfeited after the 14-day window closes.
Underdog Promo Code
Multiple promo codes are available for the Underdog sign-up offer depending on where you find the link. Common active codes include FOXSPORTS, LABS, SDS, and BETUSA. All of these unlock the same core offer: Play $5, Get $50 in bonus entries. Clicking a direct referral link will typically apply the code automatically during the sign-up process. If the field is not pre-filled, enter the code manually before completing your registration.
Note that the specific welcome offer can vary slightly by state, and some markets may see a different version of the bonus (for example, a deposit match structure rather than the play-and-get format). Underdog’s offer page at underdogfantasy.com/promo-code lists the current offer for your location once you are signed in.
Underdog Fantasy Sign-Up Offer Terms and Conditions
Understanding the full terms is important before you claim any DFS bonus. Here is a summary of the key conditions attached to the Underdog welcome offer.
The offer is available to new customers only. You must be at least 18 years of age, or 19 or older in Alabama and Nebraska, or 21 or older in Arizona, Massachusetts, and Virginia. You must be physically located in a state where Underdog operates at the time of sign-up and at the time of entry submission. Underdog is not available in Connecticut, Hawaii, Idaho, Iowa, Louisiana, Michigan, Montana, Nevada, or Washington.
A minimum deposit of $10 is required to activate the welcome offer. After depositing, you must place a qualifying entry of at least $5 in a real-money contest to trigger the release of the $50 in bonus entries. Bonus entries are credited once the qualifying entry settles.
Bonus entries cannot be withdrawn directly. Only winnings from bonus entries are eligible for withdrawal. Bonus entries expire 14 days after they are credited. Unused bonus funds are forfeited at the end of the 14-day window. One welcome offer per new user. The offer cannot be combined with other new-customer promotions.
How to Claim the Underdog Fantasy Promo
Signing up for Underdog and claiming the welcome bonus takes about five minutes. Follow these steps to make sure the offer is applied correctly.
Visit underdogfantasy.com or download the Underdog app from the Apple App Store or Google Play Store. Tap the sign-up button and enter your basic information, including your name, email address, date of birth, and the last four digits of your Social Security number for identity verification. During registration, you will see a field to enter a promo code. Enter your promo code (FOXSPORTS, LABS, SDS, or another active code) to lock in the welcome offer. Complete your registration and confirm your account via the verification email or text message.
Once your account is active, navigate to the deposit screen. Fund your account with at least $10 using one of Underdog’s supported payment methods: PayPal, Venmo, Apple Pay, or debit and credit cards including Visa, Mastercard, American Express, and Discover. After your deposit clears, browse the pick’em board or Best Ball lobby and place a qualifying entry of at least $5. Once that entry settles, your $50 in bonus entries will be credited to your account.
What to Do With Your Underdog Bonus Entries
Once your $50 in bonus entries arrives, you have several ways to deploy it. The most straightforward option is to apply the bonus toward two $25 Best Ball Mania entries, which is one of the flagship contests on the platform. Best Ball Mania features one of the largest guaranteed prize pools in all of DFS during the NFL season, and the $25 entry fee makes it accessible with bonus funds.
For pick’em players, consider using smaller slices of the $50 across multiple entries rather than putting it all into one high-risk five-pick all-in. A two-pick or three-pick entry has a much higher hit rate and gives your bonus value a better chance of producing withdrawable winnings before the 14-day window expires. The platform supports entry sizes as small as $5, so you can spread your $50 across ten separate entries if you want to maximize your number of at-bats.
Underdog Fantasy Ongoing Promotions
The welcome offer is just the beginning. Underdog runs an extensive slate of ongoing promotions for existing users. The Monday Funday promo brings profit boosts and pick protection on select entries every Monday. Power-Up Thursdays offers a 30% boost on Thursday entries. Fuel Up Fridays provides a 10% deposit match bonus on deposits made on Fridays. The Safety Net promo refunds your entry if a player you picked gets injured and causes the pick to lose. Vulture Protection covers your entry if a non-running back scores a rushing touchdown and costs you the pick. The Buddy System lets you and a friend both earn a $10 bonus when a referral is completed.
Underdog also runs the Gladiator Program, which provides rakeback on Battle Royale entry fees year-round and on Best Ball and pick’em entries during select promotional periods. Rakeback rates tier up based on entry volume, rewarding high-frequency players with meaningful credits over time.
Underdog Promo: Pros and Cons
The Play $5, Get $50 offer is one of the most accessible welcome bonuses in DFS. The minimum qualifying entry of $5 is the lowest barrier in the space, and getting $50 back regardless of whether that entry wins removes any sting from an early loss. The flexibility to use bonus entries on both pick’em and Best Ball is genuinely useful, and the 14-day window, while not the longest available, is workable for most players who log into the app regularly.
The main limitation is that bonus entries cannot be withdrawn directly — you need to win to extract cash value from them. Players in states where pick’em contests are not available (including some states where only the Champions peer-to-peer format operates) may also find their options for using the bonus entries more limited than they expected. Checking the state-specific contest availability at underdogfantasy.com before signing up is worth the extra minute.
Frequently Asked Questions
What is the current Underdog Fantasy promo code?
Several active promo codes unlock the Play $5, Get $50 offer, including FOXSPORTS, LABS, and SDS. All apply the same welcome bonus. Clicking a referral link from a partner site typically pre-fills the code for you.
Do I have to win my first entry to get the bonus?
No. The $50 in bonus entries is credited once your first qualifying $5 entry settles, regardless of the outcome. The bonus is not contingent on winning.
Can I use bonus entries on Best Ball drafts?
Yes. Bonus entries can be applied to pick’em contests, Best Ball tournaments, and other Underdog contest formats.
What states is Underdog Fantasy available in?
Underdog is available in more than 40 states. The platform is not available in Connecticut, Hawaii, Idaho, Iowa, Louisiana, Michigan, Montana, Nevada, or Washington. Pick’em contest availability varies within eligible states — some states have access to standard pick’em while others offer only the Champions peer-to-peer format.
How long do I have to use the bonus entries?
Bonus entries must be used within 14 days of being credited to your account. Any unused entries are forfeited after the window closes.
What payment methods does Underdog accept?
Underdog accepts PayPal, Venmo, Apple Pay, Visa, Mastercard, American Express, and Discover. The minimum deposit to activate the welcome offer is $10.
