Underdog Promo Code & App Review (September 2025)
Updated:
There’s a popular adage in sports that “everyone loves an underdog.” When it comes to online daily fantasy sports (DFS), this saying certainly holds true as players are enjoying everything Underdog has to offer.
DFS players are well aware of operators like DraftKings and FanDuel, but fewer might know about alternative operators like Underdog.
As one of the most unique DFS platforms, Underdog offers a competitive rake, flexible lineups, a wide range of exciting contests, and a lucrative sign-up promo code worth up to $100.
Catch all the details on Underdog with this comprehensive review, including details on key app features and links to get you started with their valuable promo code.
Underdog Review Sections:
Underdog Promo Code: SBD
In most states, using our exclusive Underdog promo code SBD will unlock the best sign-up bonus: a Play $5, Get $50 in site credit.
Simply register using the Underdog promo code SBD and make your first deposit. After making your first play of $5 or more, Underdog will credit your account with $50 in site credit. You can use the $50 in site credit to play more DFS contests with Underdog.
The minimum deposit requirement with Underdog is $10, and you can use PayPal or credit card payment methods to fund your Underdog account. Underdog is available in all states except for those listed in the table above.
Underdog Online DFS Review
Overall, Underdog offers one of the best daily fantasy sports platforms on the market.
Whether you’re a rookie DFS player or a seasoned pro, you’ll have a lot of fun with Underdog. Backed by investors like Kevin Durant, Mark Cuban, Adam Schefter, Scott Blumstein, and The Chainsmokers, Underdog is a reliable and trustworthy DFS operator.
Pros:
- Transparent rake that shows you how much Underdog is taking from each contest
- Variety of games like Pick’em, Snake Drafts, Battle Royale, Rivals, and Best Ball contests
- Intuitive mobile app
- Enticing bonuses and promotions
Cons:
- Limited number of payment methods and withdrawal options
Underdog Rake
One of the best features at Underdog is their transparent rake displayed when you go to enter a contest. The rake is the percentage of the prize pool collected by Underdog once all contestants have paid their entry fee.
Beating the rake in the long run can be difficult, and while many major DFS operators like DraftKings and FanDuel are known to hide the rake at times, Underdog is very open about showing you how much of a cut they’re taking. This makes the action at Underdog feel honest and fair.
Positions Filled Requirements
Building your fantasy rosters at Underdog is a process players will enjoy as positions filled requirements allow for flex and super flex entries. The positions you need to fill can differ depending on which contest you’re entering and there’s a two-team rule that requires you to include players from at least two different teams for all major league sports.
In Underdog football NFL contests for example, daily contests allow for one flex (RB or WR) position entry, and a single-game roster allows four super flex positions (QB, RB, WR, TE, K). Best Ball entries allow four flex entries and 10 bench positions, while playoff Best Ball rosters are comprised of four flex positions and five bench players.
Games and Contests at Underdog
The selection of Underdog contests will keep you locked in with the action no matter which sport you like to compete in.
Here’s a quick list on some of the most popular Underdog contests and short descriptions of each:
- Underdog Best Ball – Contestants select players through a snake draft for a season-long contest, and Underdog automatically selects the entrant’s highest scoring players at the end of each sport’s week.
- Pick’em – Select between two and five players and decide if they score higher or lower on certain fantasy stats. If you get five picks right, you’ll earn 20X your money. These higher/lower fantasy stats are similar to over/under player props in sports betting.
- Rivals – Contests where players pick two or more fantasy statistics (goals, points, rebounds, passing yards, etc.) to build an entry. For example, LeBron (+2.5) points vs Kevin Durant.
- Battle Royale – Entrants select players through a snake draft, with the size of the snake draft group varying between contests. Compete against all entrants for one week as opposed to a select group.
Scoring systems for fantasy points can vary depending on which sport and what contest you’re playing. Underdog offers DFS markets for all major league sports, along with alternative options like PGA an eSports contests in certain regions. College football is another fun DFS market for betting by using an Underdog promo code to secure the Play $5, Get $50 bonus.
Whether you’re looking for daily drafts, Best Ball drafts, weekly Battle Royales, or contests across a whole season, Underdog has you covered. Now’s a great time to jump in on daily and weekly contests in the thick of the NFL season or MLB playoffs, while season-long entries for the start of the NBA and NHL year currently present some huge opportunities. Their biggest contest, Best Ball Mania III, has been filled with 451,200 teams.
Daily contests typically range in size from 3-12 fantasy managers, with entry fees coming in at anywhere between $3 and $100.
Entry Fees, Payouts, and Prize Pools
Entry fees, payouts, and prizes also differ depending on what Underdog game you’re playing, but with their transparent rake system, you can easily keep track of your wins and losses.
Best Ball Mania III is currently offering up $10 million in total prizes, with a $2 million going to the first-place winner in the biggest tournament Underdog has ever offered.
When it comes to Pick’em contests, the more players you add, the higher your potential payout. Selecting the correct higher or lower stat for two players will double your stake, three correct picks will 6X your money, four accurate choices will earn you 10X, while the maximum five player picks will 20X your entry.
You can find all the details on entry fees, number of entrants, total prizes, rankings, and Underdog’s rake on each contest. Underdog offers a ton of details on their contests, which is something all players will appreciate.
Underdog App Review
With a sleek mobile app that features bold branding, easy-to-navigate menus, and reliable technology to keep your personal and financial details secure, the Underdog app is one of the best on the DFS market.
>>> DOWNLOAD THE UNDERDOG APP <<<The Underdog app is available for Android and iOS devices through the Google Play Store and Apple App Store respectively, but using the links on this page is the easiest way to get started. Underdog has a 4.8-star rating on the App Store and players are clearly enjoying everything this DFS app has to offer.
How to Sign Up at Underdog
Signing up at Underdog is a straightforward process you’ll likely be familiar with. Download the app or navigate to the Underdog site using the links on this page, click “Sign Up”, enter the required details, and you’ll be ready to get started with all the contests.
Underdog will ask you for personal details like a username and password, email, and date of birth during the sign-up process.
Rest assured, all your details are secure with a reliable DFS operator like Underdog.
New users who use promo code ‘SBD’ during the registration process at Underdog will automatically unlock our exclusive $100 deposit bonus. Using the links on this page will automatically punch in promo code ‘SBD’ during registration.
Where Is Underdog Available?
DFS sites are available in numerous states and provinces in US and Canadian markets, so we’ll quickly focus on where Underdog isn’t currently available.
Underdog is available in all US states and Canadian provinces except for the following:
- Connecticut
- Delaware
- Hawaii
- Idaho
- Iowa
- Louisiana
- Michigan
- Montana
- Nevada
- Ontario, Canada
Underdog Pick’em contests are outlawed in some states, including the following: Arizona, Colorado, Maryland, Missouri, New Hampshire, New Jersey, Ohio, Pennsylvania, Tennessee, Washington, and West Virginia.
Underdog was available in the province of Ontario, however due to new laws put in place for legal sports betting, Underdog decided to pull their product from Canada’s most populated market. Underdog Michigan was available at one point, but they have also removed their product from the Great Lakes State for the time being.
We’re keeping this page updated as Underdog continues to evaluate their market strategy.
Underdog Promotions
The top Underdog promotion is a $100 deposit match bonus, and it’s available as a one-time exclusive to new players. Sign up using the links on this page with the ‘SBD’ promo code for Underdog, make your first deposit up to $100, and Underdog will match it with site credit.
Some other Underdog bonuses include:
- Referrals (refer-a-friend)
- Multiplier boosts (i.e., Pick’em multiplier winnings)
- Other specials (i.e., adjusted payouts)
Similar to sportsbook offers, any bonus funds you receive from Underdog through promotions cannot be withdrawn, as you must use the promo cash to enter more contests. This is referred to as play through, also known as a rollover requirement.
Underdog Deposits and Withdrawals
While payment methods and withdrawal options are somewhat limited at Underdog, they still offer popular and safe options to fund your account and collect any winnings.
Underdog deposit methods include PayPal and credit cards like Visa, MasterCard, American Express, and Discover. Underdog withdrawal options include PayPal and online banking transfers. While these options are slightly more limited than other operators like DraftKings and FanDuel, collecting your Underdog payouts is still easy and fast.
Underdog payout times depend on which withdrawal method you’re using. PayPal withdrawals will typically be completed within a couple days, while online banking can take between three and five business days.
Customer Support at Underdog
The Underdog support team is extremely helpful in case you run into any issues or have specific questions.
Underdog customer support options include email and phone service. They reached out to us via email shortly after registering asking if we had any questions, which was a nice touch that we haven’t seen at many other sites.
The Underdog support team has a reputation for being extremely helpful, so don’t hesitate to reach out to them if you run into any issues.
Underdog FAQs
Still have questions about Underdog? Here are some quick answers to Underdog FAQs:
Is Underdog trustworthy?
Yes, Underdog is a trustworthy DFS operator. As one of the only daily fantasy sports platforms to show a transparent rake and numerous other reliable features, Underdog is totally legit.
Is Underdog a good app?
Yes, Underdog is a good app. The Underdog app has a 4.8-star rating on the App Store, and it’s extremely enjoyable.
Do Underdog contests have a salary cap?
No, Underdog contests do not have a salary cap. Unlike other DFS operators like DraftKings and FanDuel, contests at Underdog do not use a salary cap.
How does Underdog payout?
Underdog payouts depend on what contest you’re playing, however, the withdrawal options remain the same. You can collect your Underdog payouts through PayPal and online banking.
What is the minimum deposit for Underdog?
The minimum deposit for Underdog is $10. The minimum entry fee for Underdog contests is $3.
Is Underdog legal?
Yes, Underdog is legal in 41 states and nine provinces. That means Underdog is available in most North American markets.
Where is the Underdog app available?
The Underdog app is available in most American and Canadian markets. The Underdog app is not available in CT, DE, HI, ID, IA, LA, MI, MT, NV, and ON (Canada).
Is there a promo code for Underdog?
Yes, the best Underdog promo code is ‘SBD’. Use the ‘SBD’ promo code for Underdog to claim your Play $5, Get $50 promo.
Evergreen Manager; Sportsbook Expert
Following a sports journalism career with his work appearing in outlets like theScore, The Province, and VICE Sports, Patrick moved into the world of content marketing to bridge the gap between great writing and SEO success. He’s brought that same mindset to lead evergreen content efforts at SBD.