Underdog Fantasy Sports Promos & Review

The Underdog welcome bonus is currently worth a $100 deposit bonus. This Underdog Fantasy promo code is the maximum available offer in September 2023.

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Underdog Promo Code 2023

Right now, when you sign up for an account with Underdog Fantasy, you can get your first deposit matched at a rate of 100% in Underdog bonus cash—up to a maximum of $100. All you need to do is sign up for an Underdog account using a link on this page and deposit at least $10 into your new account.

Make sure you meet the Underdog eligibility requirements before you sign up. See the table below for further details on how to claim the current Underdog promo code.

Underdog Fantasy Promo CodeNone needed
Sign-up Bonus Offer100% match on your first deposit up to $100
Minimum Deposit$10
Payment OptionsPayPal, credit cards, cebit cards
Legal StatesEvery US state except for: CT, DE, HI, ID, IA, LA, MT, NV, WA
Last UpdatedSeptember 30, 2023

Other Underdog Fantasy Promotions & Offers

At Underdog, it pays to be a regular. On top of the $100 welcome bonus, you can claim a handful of other offers.

  • Multipliers: Get boosted payouts on select bets every day.
  • Specials: Take advantage of special lower points targets for select players in Underdog Pick ‘Em contests.
  • Refer-a-friend: Earn a $10 bonus when you get a friend to sign up with Underdog.

How to Sign Up Using Underdog Promo Code

To sign up for an Underdog account and claim the $100 welcome bonus, click a link on this page to visit the Underdog site. Once you’re there, click the green “Sign Up” button in the middle of the page. This will take you to the registration page. You’ll then be asked to enter your:

  • Full name
  • Date of birth
  • Home address
  • Email address
  • Phone number
  • New username and password

You may also be asked to submit a piece of ID (e.g., a driver’s license) to verify that the information you submitted is correct. 

Once Underdog has verified your account, you’ll be all set to make a deposit and start playing. And don’t forget that your first deposit is eligible for a 100% matching bonus up to $100.

Underdog Fantasy Review

Underdog Fantasy is quickly becoming one of the most popular DFS/Pick’em apps in the country. It’s the industry leader in the Best Ball fantasy format for the NFL, MLB, NBA, golf, and more. And with its Pick’em format, Underdog offers a prop betting-like experience to users in states where sports betting may not be legal like California, Georgia, and Texas.

Like other DFS apps, Underdog offers small and large contests to suit different players’ strengths. It’s a modern and easy-to-use fantasy format that offers a variety of games to a wider-reaching audience than sports betting currently does.

Underdog Best Ball – Rating: 4.7/5

Best Ball is quickly becoming one of the most popular forms of fantasy football. The allure of not having to scour the waiver wire and set a lineup each week is enticing to a growing number of people. This format also removes the possibility of leaving a 40-point WR explosion on your bench.

When it comes to Best Ball leagues, Underdog reigns supreme. It was among the first to dedicate a platform to Best Ball and really commercialize it.

Underdog’s large-scale Best Ball pools are akin to other DFS sites’ biggest contests. Formatting Best Ball leagues like DFS contests adds a sense of familiarity to regular DFS players. That’s a draw for many.

Of course, there are competitors to Underdog in the Best Ball space, but they’re all fighting for its top spot.

Underdog Pick’em – Rating: 4.3/5

Also growing is the props betting market—not just regionally in legal betting states, but nationally. National networks like ESPN and NFL Network are tooling props and prop betting into their content plans. As a result, even states without legal sports betting are clamoring to prop bet.

Underdog delivers a sensible prop betting feel, branding it as “Higher/Lower” and “Rivals” pick ‘em challenges. Since this isn’t technically prop betting, states that don’t have legal sports betting still allow the pick ‘em challenges.

The premise is simple enough and easy for newcomers to understand.

The markets are fairly on par with betting markets found at sports betting giants like DraftKings and FanDuel. The difference with Underdog is that you aren’t paying juice and factoring fair value lines into your decisions. Instead, just pick ‘higher’ or ‘lower’ for each side (or a player for rivals).

However, users aren’t able to just bet one side of a prop and cash in. Rather, Underdog forces users to string together multi-leg parlays (2-5 selections) for increased cashouts (3x, 6x, 10x, 20x). Naturally, this comes with a low cash rate, given the standard breakeven needed for a five-leg parlay is equivalent to +2000.

But, as far as ease of use, barrier to entry, and overall enjoyment, it’s tough to argue against Underdog’s format.

Underdog DFS – Rating: 4.2/5

Underdog offers daily and weekly fantasy contests in addition to season-long best ball tournaments. However, in a twist, contestants draft players rather than pick with a salary pool. This gives users a completely different experience than, say, DraftKings or FanDuel.

If analyzing usage percentage and exposure to players isn’t your thing, then perhaps this unique format will suit your fancy. It’s even more enticing for those who love fantasy sports drafts.

While Underdog has its own pool of sharks, the draft format gives casual players more confidence in competing rather than those who print hundreds of lineups and flood the large-scale contests. Also removed from the equation are those that flood the large contests and take a majority of the winnings.

Contest sizes range from head-to-head (two-person format) to 12-person drafts. Even the biggest contests group users into six-person drafts and go from there.

For those frustrated with the common DFS game found on other platforms, Underdog furnishes a completely original option. However, it may not be for those who love the DFS salary format and wish to find another platform to play that way.

Customer Service – Rating: 3.7/5

Customer support is somewhat easy to find on the app, although other apps make theirs more obvious. To find the contact, navigate to the Account tab on the bottom right, and it’s the sixth option off the top.

Unfortunately, the app only offers an email submission form for support requests. Other leading fantasy and sports betting apps offer live chats, phone numbers, and more. Common complaints in the app’s review include slow turnaround times on these support requests, but our interactions with the support team were quick and helpful.

The Underdog Twitter account does not seemingly field support requests.

Deposits & Withdrawals – Rating: 3.6/5

Depositing and withdrawal requests here are pretty standard. The withdrawal turnaround time is fair (although some reviews suggest other users have had difficulty), and deposits are instant.

Underdog accepts the usual payment methods—credit/debit cards and PayPal—although many apps are expanding to accept Venmo, Apple Pay, and other forms of payment. But for now, the options are sufficient for the daily user.

As with all sports betting apps, deposits are more straightforward than withdrawals. A deposit can take under a minute. Navigate to ‘Account.’ Then, ‘Deposit’ is the top option. ‘Withdrawal’ is the third option and only offers PayPal and Interchecks. There’s no fee to withdraw, but the options are more limited.

Timeframes for withdrawals are left ambiguous, probably intentionally. However, they should not take more than a couple of business days.

Underdog Fantasy Final Thoughts

Overall, the Underdog Fantasy app is easy to use and has a pleasing interface. It offers unique DFS and fantasy options for a half-dozen sports, including football, baseball, basketball, and golf. There’s a reason Underdog stands among the industry leaders in Best Ball and Pick’em challenges.

Depositing is easy and versatile. The app is also legal and available in many states where sports betting is not yet, like California and Texas. Users in most states may begin playing with Underdog at age 18 whereas most sportsbooks require users to be 21.

Underdog also offers a unique DFS experience that may suit those who aren’t finding success or joy in standard salary-format DFS games. However, that unique format might not be for everyone. For those looking for another standard DFS platform to explore, this app might not be for you. 

The biggest complaint with Underdog is its seeming lack of customer service options, which can be immensely frustrating for users. As long as you don’t encounter any issues, then Underdog can be a terrific app.

  • Overall, Underdog scores a 4.1 out of 5 rating.

Underdog Sportsbook Coming Soon

Underdog is soon entering the regulated sportsbook market. It’s unclear yet when and where the sportsbook will launch. New users can expect a deposit match of up to $100 at signup. Follow this page for updates on the Underdog Sportsbook launch.

Where Is Underdog Available?

Underdog Fantasy is available in 41 states to those 18 years and older. The nine excluded are Connecticut, Delaware, Hawaii, Idaho, Iowa, Louisiana, Montana, Nevada, and Washington. It’s also available in Canada, with no provinces excluded, according to the site’s official terms and services.

Underdog Pick’em is currently available in 31 states. Aside from the nine above states, Pick’em is NOT available in Arizona, Colorado, Maryland, Missouri, New Hampshire, Ohio, Pennsylvania, Tennessee, Washington, or West Virginia. However, large non-legal sports betting states like California, Georgia, and Texas do allow Pick’em contests.

Underdog fantasy FAQ

What is the Underdog promo code in September?

There is no Underdog promo code needed to access the welcome bonus. As long as you sign up using a link in this Underdog review, you will unlock the Underdog bonus automatically. The current bonus is a 100% match on your first deposit, worth up to $100 in bonus funds.

Is Underdog Fantasy legal?

Yes, you can legally play with Underdog provided that you are 18 or older and located in a state where Underdog is legal. Underdog is legal in every state except for CT, DE, HI, ID, IA, LA, MT, NV, and WA.

Can I bet using Underdog?

Not yet. While traditional sports betting (moneylines, point spreads, parlays, etc.) could be added to the Underdog platform in the future, this has not yet been confirmed. At this time, Underdog offers three types of DFS contests: Best Ball, Battle Royale, and Pick’em.

Can I play with Underdog for free?

No, Underdog has no free-to-play option. Every Underdog Battle Royale and Best Ball contest charges an entry fee (typically between $3 and $100), and Underdog Pick’em entries require a real money stake. Underdog winnings are also paid out in real money.

Is there a minimum deposit at Underdog?

Yes, Underdog has a minimum deposit of $10. Don’t forget that Underdog will match your first deposit with bonus funds, up to a limit of $100.

Can you bypass app location at Underdog?

No. If you are located in a state where Underdog is not legal, you will be unable to play. Attempting to bypass geolocation with a VPN or other means will likely result in your account being banned. We recommend you wait until paid daily fantasy sites are legal in your location before signing up.

Other Fantasy Platforms

Underdog isn’t the only DFS site that players can sign up with these days. Here are some of the other popular platforms competing with Underdog in the fantasy sports realm.

  • DraftKings DFS: Founded in 2012, DraftKings is now a household name in both fantasy sports and sports betting. DraftKings is known for its extensive market coverage and the size of its prize pools.
  • FanDuel DFS: Having emerged alongside DraftKings in the early days of DFS, FanDuel is among the best integrated DFS and sports betting platforms in the country, with a cutting-edge mobile app, great bonuses, and tons of exciting peer-to-peer contests.
  • Fliff Social Sportsbook: Perfect for users who want a low-stakes option, Fliff offers a free-to-play option (Fliff Coins) and a real money option (Fliff Cash); plus, you can earn XP by entering Fliff contests that can be translated into gift cards at Fliff partners like Chipotle and Airbnb.
  • PrizePicks: Fans of player-prop betting love PrizePicks’s ultra-simple interface, where you combine a series of “more” or “less” player totals into a parlay-style ticket. If you get them all right, you collect a payout. The more picks you combine, the juicier the winnings.