2023 Review

Underdog Fantasy

Editor's Opinion of Underdog Fantasy

Play daily fantasy sports at one of the leading online fantasy sites. Bet on football, basketball, soccer, and more. Get a 100% deposit match for signing up for a new account.

✍️ Written by
Alicia Butler
✅ Fact checked by
Darena Rodrigues
🗓 Updated
Sep 29th 2023

    Underdog Fantasy Hands-on Review

    Tired of the same ole fantasy sports then head on over to Underdog where they level the playing field for average players
    Alicia Butler
    Alicia Butler

    Underdog Fantasy Promotions

    There are currently no promotions available for Underdog Fantasy. Find the best gambling promo codes from other operators on OddsSeeker!

    Key Information About Underdog Fantasy

    Underdog Fantasy is the newest venture of Jeremy Levine, who co-founded the daily fantasy sports startup DRAFT.

    This daily fantasy sports platform offers fantasy football, basketball, soccer, and much, much more.

    Gone are the days when you need to join a fantasy league at work or with friends; online fantasy leagues offer both daily fantasy sports and longer-term contests.

    Get the scoop on the best Underdog Fantasy promo codes, if Underdog Fantasy is legal, and where you can download the Underdog betting app.

    Underdog Fantasy Promotions

    Looking for Underdog Fantasy promos?

    Right now, this daily fantasy sports platform is offering a generous welcome bonus of a 100% deposit match.

    All you need to do to take advantage of this deal is to use the OddsSeeker link to head over to the Underdog Fantasy website, sign up for a new user account, and make a first deposit.

    Underdog Fantasy Promo Code 

    If you’re hoping for an Underdog Fantasy promo code, we’ve got some news for you: there’s no need to use a bonus code to snag this welcome promo! Read on to find out which promos Underdog is offering for new and existing players.

    Underdog Fantasy Deposit Match 

    Looking for an Underdog Fantasy deposit match?

    Right now, this fantasy sports league site is offering a 100% deposit match of up to $100. Just head over to the Underdog Fantasy site using the OddsSeeker link to claim this bonus.

    Underdog Fantasy No Deposit Bonus Code 

    Right now, Underdog Fantasy isn’t offering a no deposit bonus code. Check back regularly for the most up-to-date information on online sports betting promos.

    Underdog Fantasy Risk-Free Bet 

    Right now, Underdog Fantasy isn’t offering any risk-free bets. Check back regularly for the most up-to-date information on online sports betting promos.

    Underdog Fantasy Playthrough Requirements

    Underdog Fantasy requires you to play through your bonus funds one time before cashing out your winnings.

    This means that you can’t simply accept the welcome bonus and cash it out — without playing the funds first!

    A one-time playthrough requirement is considered a pretty good deal on most sports betting sites, as some sites require you to wager the funds up to 20 times over before cashing out winnings!

    Underdog Fantasy Ongoing Promos

    Underdog Fantasy is still a relatively new online fantasy sports betting site and doesn’t yet offer a long list of ongoing promos (such as the ones you’d find at more established daily fantasy sports sites, such as DraftKings and Fanduel).

    Yet, this online fantasy sports site does offer a few promos to loyal players, including a refer-a-friend bonus and multiplier boost.

    As always, we recommend following all of your favorite online sports betting and casino platforms on social media (as well as signing up for text, app, and email alerts) to find out about all ongoing promos the moment they’re announced.

    Refer-a-Friend Promo

    Want to get a promo just for telling your friends and family about Underdog Fantasy sports? Get a $10 account bonus every time you get someone to sign up for a new Underdog Fantasy account.

    As an added bonus, any friend you refer will also get a $10 bonus — just for signing up!

    Multiplier Boosts

    Underdog Fantasy offers multiplier boosts in Pick’em and Rivals contests. If you win a multiplier boost, you’ll get the amount of the boost added to your account balance.

    For a two-times return bonus, you’ll get your standard return, plus two more. If the standard return is four, you’ll get a return of six times the amount. The standard four times the return will be available as account funds, and the bonus will be awarded into your account but must be played through at least one time before you can withdraw the funds.

    Underdog Fantasy VIP/Rewards Program

    Right now, Underdog Fantasy doesn’t have a VIP or rewards program. We’re hoping that as this platform’s popularity grows, it will create a program similar to the ones offered at DraftKings, Fanduel, or other platforms that offer fantasy league sports.

    Underdog Fantasy Reviews

    Want to know if Underdog Fantasy is worth the account signup? Our Underdog Fantasy review breaks down the pros and cons of this online daily fantasy sports betting site.

    Find out if Underdog Fantasy is legit, what its user experience is like, and in what states online fantasy sports are legal.

    Is Underdog Fantasy legal?

    Yes, Underdog Fantasy is legit and legal. You must be physically located in a state where Underdog is licensed to accept fantasy bets from players. You must also abide by the fantasy sports laws of each state to play in these leagues and win real money.

    States Where Underdog Fantasy is Legal

    Right now, Underdog Fantasy is accepting bets in all states except for the following states:

    • Connecticut

    • Delaware

    • Hawaii

    • Idaho

    • Iowa

    • Nevada

    • Louisiana

    • Montana

    • Washington

    “Frank’s Take”

    Founded in Brooklyn in 2020, Underdog Fantasy has made a name for itself in the world of online sports betting. Similar to other online daily fantasy sports sites like PrizePicks, players can bet on fantasy sports against the house here. (If you want to check out that platform too, we've got a pretty good PrizePicks promo for you).

    Even though it’s only been around for a few years, it has gained the attention of celebrity investors, such as Mark Cuban, Brooklyn Nets player Kevin Durant, and Adam Schefter of ESPN.

    Famous musicians who have invested in Underdog Fantasy include Future, Gunna, and Nas.

    We shouldn’t be too surprised that this fantasy sports platform has gotten so much attention. One of Underdog Fantasy’s founders is Jeremy Levine, who also co-founded DRAFT, another daily fantasy sports startup. While DRAFT was bought by Paddy Power Betfair in 2017, Underdog is Levine’s current sports fantasy passion project.

    Yes, Underdog Fantasy is only two years old. Yes, it’s still a much smaller platform than its biggest competitors, including DraftKings and Fanduel. Can Underdog compete with the large player pools offered by these two competitors? No.

    But that doesn’t mean it doesn’t hold its own in daily, weekly, and ongoing fantasy leagues.

    So far, we’ve been super happy with the user experience offered by Underdog Fantasy’s Apple and Android apps.

    Underdog is legal in 41 states, meaning it’s less restricted than most online sports betting platforms. As with social sports sites, like Fliff, you only need to be 18 to play. Check out our current Fliff promo to get a welcome bonus.

    Underdog Fantasy User Experience

    We love the Underdog Fantasy user experience. In fact, it’s one of the best user experiences we’ve had on a platform that isn’t one of the major sports betting platforms, like DraftKings or Fanduel.

    The app is very responsive, and we experienced virtually no lag times.

    We love the app’s design and layout; finding fantasy leagues, players, and tournaments is very straightforward. We love the design and found that download and upload speeds are very fast. We also loved that there are no ads to slow it down or detract from the user experience.

    Underdog Betting App

    Yes! You can pick your players and track your teams on the Underdog betting app, available for both Apple and Android phones.

    In fact, we recommend using Underdog’s app if you’re planning on managing your fantasy leagues on this site on the go.

    To download the app, simply sign up for an account using the OddsSeeker link. Then, download the app from the Apple or Google Play stores.

    Once you’ve got an account and the app is downloaded, you can sign right into your account on the app.

    From the home screen, you can find everything you’re looking for, including player rankings, account balance, contests (both active and completed contests), and drafts. You are able to enter large tournaments, as well as daily, weekly, and season-long contests.

    To find player rankings, simply click on the menu button on the upper-left-hand corner of the home screen.

    You can add funds to your account balance or withdraw winnings directly from the app. Or, manage your account balance on the Underdog Fantasy site.

    Start choosing your rosters by sport or by daily contest.

    You can also find ways to play in the homepage footer. Choose games by drafts, pick’em, live, or betting. You can also access your account information from the footer (including your game results, banking information, and customer support).

    Underdog Fantasy App Android

    Looking for the Underdog Fantasy app for Android? You’ll find the link to the app right in the footer of Underdog Fantasy’s homepage. Or, head to the Android store and search for “underdog fantasy” to find the app.

    Follow the below instructions to sign up for a new user account and to claim your welcome bonus. Once you have an account, you can sign into it right from the app.

    Underdog Fantasy App iPhone

    Looking for the Underdog Fantasy app for iOS? The link to the app’s Apple Store page is on the Underdog Fantasy homepage’s footer. You can also do a Google search for the Underdog Fantasy app or head directly to the Apple Store and do a search for “underdog fantasy”.

    Follow the below instructions to sign up for a new user account and to claim your welcome bonus. Once you have an account, you can sign into it right from the app.

    Underdog Sports

    One of our favorite reasons to join Underdog Fantasy is the large selection of sports leagues. You’re not pigeonholed into just fantasy football or fantasy basketball.

    Just some of the fantasy leagues included at Underdog include:







    Underdog is a daily fantasy sports site, meaning it's not associated with any online casinos or sportsbooks. If you live in Pennsylvania and want to play at a real money online casino, we recommend Wind Creek Casino Online. Snag a Wind Creek promo of a 100% deposit match!

    Underdog Fantasy Games

    There are five ways to play fantasy sports at Underdog Fantasy, including Best Ball, Daily Drafts, Pick’em, Over/Under, and Rivals.

    Best Ball

    Best Ball is one of the easiest ways to play in fantasy leagues at Underdog. All you need to do is draft your team, and you’re good to go! You won’t need to mess around with any more roster admin, including waivers or trades.

    Your results will be tallied based on this roster.

    Whoever has the first pick in round one will have the last pick in round two; this will trade off with each round.

    You can find the info for each contest on the information page.

    The highest-scoring players will be deemed as starters by Underdog; only these players' stats will be counted toward the accumulated score.

    Best Ball Slow Drafts

    Slow drafts start at eight hours and reduce to four hours two weeks before week one.

    The pick clock shortens to 10 minutes per pick and then to 60 seconds two hours before the first game.

    Between 2 a.m. and 5 a.m. EST, the slow draft will pause for four hours and will extend to six hours two weeks before the start of the season. Slow drafts will then become shorter and overnight pauses will continue to extend so there is less of a chance you’ll miss an overnight pick.

    Not all sports have slow drafts.

    Whoever has the highest score at the end of the Best Ball contest will be awarded prizes based on the pool.

    Daily Snake Drafts

    Daily snake drafts are available for all sports except for NFL (for which there are weekly snakes). These drafts work similarly to Best Ball drafts, the main difference being that these are shorter drafts that run for a set amount of time instead of an entire season.

    Between 3 and 12 managers will be accepted into each snake draft contest league. Fees range from $3 to $100 for snake drafts.

    Underdog Fantasy enforces a two-team rule, meaning you must choose players from two different teams on your team.

    Instead of offering a quarterback spot in single-game rosters, Underdog Fantasy offers Superflex spots, where you may choose a quarterback (or not).

    Underdog Pick’em Rules

    Underdog offers two types of Pick’em contests, including over/unders and rivals. These are run similarly to prop games.


    Choose the over/under for a select sporting event (including player touchdowns, total game points, yards run, and more).

    Choose whether one team or player will reach over or under the estimated number of events. Choose up to five and win more based on the total number of totals you choose.


    Rivals are prop bets that are even simpler than over/unders. Players and teams are pitted against each other in these contests. Choose which player will run the most yards or score the most points.

    You can even choose point spreads for rivals.

    Choose up to five rival totals; the more totals you win, the more you can multiply your winnings.

    Underdog Fantasy New Account Signup

    Ready to sign up for an Underdog Fantasy account? Just follow the steps below to sign up for a new account and claim your welcome bonus.

    1. Click on the OddsSeeker link to get to the Underdog Fantasy website.

    2. Click “Sign Up”.

    3. Create a username and password.

    4. Enter your information including your email, date of birth, and promo code.

    Once you have filled out all the required information, you’ll need to agree to the terms of service.

    To claim your welcome bonus, you’ll need to make a qualifying first deposit of at least $10 (and up to $100).

    Ready to download the Underdog Fantasy app? You can do so by clicking on the iOS or Android icons at the bottom of the homepage. You’ll then be taken to the Apple Store or Google Play Store to start the download. Or, just search “underdog fantasy” in either app store.

    Log into the app using your chosen username and password, and you’re good to go!

    Underdog Fantasy Customer Support

    Need to contact customer support? Have a question about the app or website? Need some technical support?

    You can contact Underdog Fantasy’s customer support team by email or direct message on Underdog’s social media accounts.

    To email a question or concern to Underdog Fantasy, you can do so by contacting:

    [email protected]

    To contact Underdog Fantasy on social media, send a direct message to one of the following accounts:

    Twitter: @UnderdogFantasy

    Facebook: @UnderdogFantasy

    Underdog Fantasy Withdrawal & Payments 

    When you’re ready to make that first deposit, you can do so with a few different payment methods. Withdrawing winnings is just as easy as depositing funds.

    Underdog Fantasy Payments

    Underdog currently accepts payments through:


    Credit Card through Paypal

    There is a $10 minimum on all payments.

    Underdog Fantasy Withdrawals

    Ready to withdraw your winnings? You can do so by:


    Electronic Check

    Underdog Fantasy doesn’t charge fees to withdraw winnings or holdings!