Underdog Fantasy Promo Code & Review

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Use Underdog Fantasy Promo Code ODDS100

Editorial Rating


Deposit Methods

Key Features

Sign-Up Bonus

The sign-up bonus on Underdog Fantasy is a 50% first deposit match up to $500 and a special pick. Use promo code ODDS100.

Companies featured on this page may be our partners who compensate us if you sign up for one through our links. This doesn't affect our ratings or opinions in any way. Must be 21+. Gambling Problem? Call 1-800-GAMBLER. See full disclosure.

Underdog Fantasy is our highest-rated daily fantasy sports (DFS) site thanks to its variety of games, unmatched user experience, and valuable sign-up bonus.

Underdog features daily, weekly, and season-long games such as Best Ball, Battle Royal, Rivals, Higher/Lower, Insurance, and more. You can play in both draft-based contests against other players as well as player-stat-based contests against the house.

The sign-up bonus on Underdog Fantasy is a 50% first deposit match up to $500 and a special pick. You can use Underdog promo code ODDS100 during signup to unlock the offer.

In this Underdog Fantasy review, we go over how the promo code and sign-up bonus work, Underdog’s game types and sports offered, payment options, pros and cons, and much more.

In this review

Underdog Fantasy Promo Code & Sign-Up Bonus

Underdog Fantasy offers a 50% deposit match up to $500 and a special pick when you use promo code ODDS100. Once you make your first deposit, Underdog will match half of it in bonus funds. 

Underdog Fantasy Promo Code & Sign-Up Bonus

As a new customer of Underdog Fantasy, you can claim the 50% deposit match up to $500. To redeem the offer, you can use Underdog promo code ODDS100 during registration.

Once your initial deposit goes through, you’ll receive the corresponding site credit within 72 hours. The bonus is non-withdrawable, but it only carries a 1x rollover, meaning you can withdraw any winnings resulting from contests you enter with it.

How to Use the Underdog Fantasy Promo Code for the Sign-Up Bonus

All you need to do to get the 50% welcome bonus on Underdog Fantasy is create an account, use the bonus code ODDS100, and deposit at least $10.

Here are detailed step-by-step instructions for your reference:

  1. Head to Underdog Fantasy and hit the Sign Up button at the top.
  2. Create a username and password, then enter your email and date of birth.
  3. Type ODDS100 under “Promo code or username” at the bottom of the registration form and click/tap Sign Up.
  4. Once you log in, navigate to the deposit page, choose an available payment method, and deposit at least $10. Remember that only your first deposit is matched, so you should deposit $500 if you want to max it out.
  5. Provided you did everything correctly, you should receive your 50% deposit match bonus within 72 hours.

Important Information About the Underdog Fantasy Sign-Up Bonus

  • Deposit limits. The minimum deposit is $10. You can deposit more than $500 if you wish, but the amount of bonus credits you can receive is capped at $250.
  • Time to use. This promotion expires 60 days after being credited to your account.
  • Playthrough requirement. There’s a 1x playthrough requirement attached to the deposit and the bonus amount. This means that if you deposit $500 and receive $250 worth of bonus credits, you must play $750 (deposit + bonus)  before you can withdraw any winnings from the bonus credits.
  • Eligibility. The offer is limited to new Undergod Fantasy members who are at least 18 years old in the states where Underdog Fantasy operates, with the exception of Alabama (19+), Nebraska (19+), Arizona (21+), and Massachusetts (21+).

>> Access the Underdog Fantasy Sign-Up Bonus With Promo Code ODDS100 Here

Underdog Fantasy Review

Jeremy Levine founded Underdog Fantasy in 2020 after raising over $10 million from a group of investors, notably Jared Goff, Mark Cuban, Kevin Durant, and Adam Schefter.

Underdog is currently ranked #1 on our list of the best DFS sites thanks to its variety of game types, awesome user experience, competitive payouts, and wide state availability.

The platform specializes in the Best Ball format, placing emphasis on simplicity. The participants take part in a draft and let the season run its course. There are no trades, waivers, or any sort of in-season management.

Apart from the season-long Best Ball (also called Best Puck for hockey), Underdog Fantasy features plenty of short-term games like daily snake drafts (Battle Royal) and player-stat-based Pick’em games like Higher/Lower and Rivals, which you can play regularly or with Insurance.

Payouts on Underdog's Pick'em games for 3-pick entries, especially, are better than most other Pick'em sites.

The variety of game types combined with an unmatched user experience and great sign-up bonus is what really sets Underdog apart and makes them our highest-rated DFS platform. You can choose between playing against other users in small to large drafts or playing against the house with games like Higher/Lower on player stats.

Underdog Fantasy’s main calling card is that it features some of the largest tournaments with massive prize pools. For instance, their Best Ball Mania III tournament, with a $25 entry fee, had over 450,000 entrants, a $10 million prize pool, and a $2 million first prize.

The sports featured in Underdog Fantasy contests include the NFL, NBA, MLB, NHL, soccer, golf, tennis, boxing, Formula 1, esports, and more.

Pros & Cons

Underdog Fantasy State Availability

Though Underdog Fantasy is our top-rated DFS site, it isn't available everywhere. It is available in the majority of states with legal DFS but Underdog Pick'em isn't eligible in certain states.

To make matters more confusing, Underdog recently introduced a new game mode called Pick'em Champions, where you still choose higher or lower on player stats but are competing against other players instead of the house.

So which states is Underdog Fantasy available in? Which states allow Pick'em? Which only have Pick'em Champions?

At this moment, the Underdog Fantasy platform is available in full or partial capacity in the following states:

  • Alabama (Pick'em Champions & Drafts only)
  • Alaska
  • Arizona (Pick'em Champions & Drafts only)
  • Arkansas (Pick'em Champions & Drafts only)
  • California
  • Colorado (Pick'em Champions & Drafts only)
  • Florida (Pick'em Champions & Drafts only)
  • Georgia
  • Illinois
  • Indiana (College Pick’em unavailable)
  • Kansas
  • Kentucky
  • Maine (College Pick’em unavailable)
  • Maryland (no Pick’em games)
  • Massachusetts (Pick'em Champions & Drafts only)
  • Minnesota
  • Mississippi (no Pick’em games)
  • Missouri (Pick'em Champions & Drafts only)
  • Nebraska
  • New Hampshire (no Pick’em games)
  • New Jersey (no Pick’em games)
  • New Mexico
  • New York (College Pick’em unavailable)
  • North Carolina (no Pick'em games)
  • North Dakota
  • Ohio (no Pick’em games)
  • Oklahoma
  • Oregon
  • Pennsylvania (no Pick’em games)
  • Rhode Island
  • South Carolina
  • South Dakota
  • Tennessee (Pick'em Champions & Drafts only)
  • Texas
  • Utah
  • Vermont (College Pick’em unavailable)
  • Virginia
  • West Virginia (Pick'em Champions & Drafts only)
  • Wisconsin
  • Wyoming (Pick'em Champions & Drafts only)

>> Sign up for Underdog Fantasy here

Here is a map that shows Underdog's Pick'em availability:

Underdog Fantasy Pick'em States

Here is a map showing Underdog's Draft availability:

Underdog Fantasy Draft States

>> Underdog not available in your state? See popular Underdog Alternatives here

Underdog Fantasy DFS Game Types

Underdog Fantasy offers several exciting game formats ranging from season-long Best Ball to player-stat predictions against the house dubbed Pick’ems.

Best Ball

Best Ball is the most popular game format at Underdog Fantasy. It is a season-long contest where the goal is to draft a team and not rely on any roster movements throughout the year. The points are based on the players’ game-by-game performances that differ between sports.

You won't have to create a roster for every game, as it’s automatically generated. You basically just need to draft a team and let the season run its course. The Best Ball format allows for longer rosters to compensate for the lack of roster changes during the season.

In Round 1, each contestant joins a 12-person group. The best players from each group progress to the next round. The same system applies to Rounds 2 and 3, while the last Round 4 features one large final group with ladder-style payouts. The prize pools are usually in the millions.

Best Ball contests are available across the NFL, NBA, MLB, NHL, and PGA, with more sports and leagues to come.

Here is a screenshot of one of Underdog's past Best Ball contests:

Underdog Fantasy – Mobile NFL Best Ball


Pick’em refers to player-stat-based games where you don’t compete against other participants but rather predict the players’ performances and get paid out based on how many players you include in your prediction.

This makes Underdog Fantasy a very similar DFS app to PrizePicks, if you're familiar with that.

There are two types of Pick’em modes at Underdog Fantasy:

  • Higher/Lower: Predict the player’s stat line based on a given number. For example, will Steph Curry’s total points for the game be higher or lower than 26.5? You must select at least a player from 2 different teams but can select up to 5.
  • Rivals: Predicting that one player will outperform the other, like Justin Herbert having more passing yards than Joe Burrow. Most often, players projected to have less of the specific stat will be given an adjustment, such as +25 passing yards.

Note that you’re allowed to combine the Higher/Lower and Rivals in the same entry.

Here’s how the payouts for Underdog’s Pick’em contests typically work:

  • 2 of 2 correct pays 3/1
  • 3 of 3 correct pays 6/1
  • 4 of 4 correct pays 10/1
  • 5 of 5 correct pays 20/1

Payouts on 3-pick entries are better than most other Pick'em sites which typically offer 5x your entry fee. The only other DFS site with better payouts on 3-pick entries is Thrive Fantasy (6.2x).

There are sometimes payout boosters which increase your payouts above the already favorable payouts relative to other DFS apps.

When you want a little wiggle room in Pick’em games, you can activate the Insurance options and win even if one of your selections fails. You must include at least 3 selections to use insurance. Of course, using insurance will result in a reduced payout, even if you don’t get any picks wrong.

With insurance, here’s how the payouts work:

  • 2 of 3 correct pays 1/1
  • 3 of 3 correct pays 3/1
  • 3 of 4 correct pays 1.5/1
  • 4 of 4 correct pays 6/1
  • 4 of 5 correct pays 2.5/1
  • 5 of 5 correct pays 10/1
Here are some screenshots of Underdog's Higher Lower contests (click to expand):

Pick'em Champions

This game mode is very similar to Pick'em except that you compete against other Underdog users instead of against the house.

With Pick'em Champions, you create an entry of 2 to 5 picks where you choose higher or lower on player stats. 

What place you have to come in to win varies based on the specific contest, but the more picks you get right, the better your chance of winning.

If you beat out all other contestants, you get the entire Champions Prize. If you tie for the best score, you will split the prize with everyone you tied with.

Underdog recently added Florida to its list of states where Pick’em Champions is available, making it 12 states in total. Before, they only had free-play games in Florida.

Weekly Winners

Underdog launched Weekly Winners just in time for the 2023 NFL season.

This new game type works similarly to best ball—one draft, no in-season trades, and no in-season management—except that Underdog pays out $20,000 to the highest-scoring team each week.

Prizes are also given for everyone from second place ($10,000) to 7315th place ($10). 

If you're a fan of best ball or just want to try it out, this new twist on the popular game format is a great way to compete each week instead of having to wait until the end of the season to see if you won money.

The entry free for Underdog Fantasy's Weekly Winners during the 2023 NFL season is just $15—which comes out to less than a dollar per week.

Battle Royale

Battle Royales are games with a week-long duration. You select players through a snake draft and compete against other players. You can also participate in smaller daily drafts and create private drafts with friends.

For example, you can draft a team based on all games in an NFL slate or just choose to draft for the Monday Night Football game.

Group sizes range from 2 to 6 drafters for Battle Royale drafts.

Underdog Fantasy Sports Offered

Underdog Fantasy offers contests on all the popular sports while promising to add more in the future. The currently available competitions include:

  • NFL
  • NBA
  • MLB
  • NHL
  • Soccer
  • Boxing/MMA
  • Golf
  • Tennis
  • Formula 1
  • eSports

Underdog Fantasy Ongoing Promotions & Rewards Program

Aside from the welcome bonus, Underdog Fantasy often offers specials and payout boots on their games. For instance, you may run into a boost offer in which getting all five picks correct in a Pick’em game results in a 60/1 payout instead of the usual 20/1.

You can also earn $10 in site credit for every friend that you invite to the platform that makes a deposit.

At this time, there is no Underdog Fantasy rewards program.

Signing Up for Underdog Fantasy DFS

You must be 21 or older to register at Underdog Fantasy if you’re from Arizona or Massachusetts, 19 or older for Alabama or Nebraska, and 18 or older if you’re from any other eligible state. The sign-up process is simple:
  1. Go to the Underdog Fantasy website or download the iOS/Android app.
  2. Hit the Sign Up button.
  3. Fill out the registration form with your desired username and password, email address, and date of birth.
  4. Activate your account and complete your first deposit.
Here are some screenshots of the Underdog Fantasy sign-up process (click to expand):

Underdog Fantasy Deposit & Withdrawal Methods

Underdog Fantasy accepts PayPal and credit/debit cards for deposits. The minimum withdrawal is $10, but you can take out less if you have less than $10 left in your balance.

Underdog Fantasy DFS Deposit Methods


Min/Max Deposit

Deposit Time

Credit/debit card (Visa, Mastercard, Discover, Amex)






Underdog Fantasy DFS Withdrawal Methods


Min Withdrawal

Payout Speed



1 to 2 business days

Interchecks (Bank transfer, physical check, prepaid card)


1 to 5 business days

How Much of a Cut Underdog Fantasy Takes

Underdog Fantasy is a DFS platform that is fully transparent about its rake. You can see the exact cut the operator makes for each game you play. The cut differs between contests, but it usually hovers between 10% and 11.5%, which is pretty good compared to the competition.

Underdog Fantasy User Experience

One of the best parts of Underdog Fantasy is the great user experience. Both the desktop version of the platform and mobile app are easy to navigate, load quickly, and rarely have any crashes or glitches.

Once you log into the website or app, you’ll land on the Lobby page by default which shows featured tournaments and smaller drafts that you can enter. If you want to enter one, you simply click into it, confirm you want to enter, wait for the draft lobby to fill, then draft your team.

You can get a better idea of what a draft in Underdog looks like in the screenshots below, but they are very similar to a season-long fantasy draft that you would do on a site like ESPN, Yahoo, or Sleeper. While drafting, you can see projected player points and click on their names to see news, info, and past performances.

Once you complete a draft, you can check the Active or Completed tabs towards the top of the screen to check your lineups and if you won.

To play Pick’em games, simply click that tab towards the top of the screen (desktop) or bottom of the screen (mobile app), then select if you want to play Higher/Lower or Rivals.

For Higher/Lower games, you’ll see stat category choices by player plus a Higher and Lower button. Making a selection will add it to your pick slip which shows up on the right side of your screen on desktop or the bottom of your screen on mobile.

For Rivals, you’ll see a list of all head-to-head matchups you can choose from. All you have to do is pick which player you like in a matchup and it will be added to your pick slip.

Once you’re ready to submit your lineup, simply enter how much you want to play and hit Submit.

Here are some screenshots of the Underdog Fantasy desktop site:

Here are some screenshots of the Underdog Fantasy mobile app:

Underdog Fantasy Reviews from Players

Another great thing about Underdog is its great customer reviews.

On the Apple App Store, it has an average rating of 4.7 from over 7,500 reviews. On the Google Play Store, it has a 4.5 rating from over 2,500 reviews. These are better than almost any other DFS app.

Positive reviews often mention how intuitive and smooth the app is, the number of games available, and the unique draft-based format.

The few negative customer reviews mention trouble reaching customer support, having entries changed/disqualified, trouble logging in, and occasional crashes.

Underdog Fantasy Customer Support

You can contact Underdog Fantasy in multiple ways, including via email, through their website, and by reaching out to their social media profiles. The support typically responds between 24 and 48 hours.

Underdog Fantasy DFS FAQs

When did Underdog Fantasy launch?
Underdog Fantasy launched on March 1, 2020, in Brooklyn, New York.

Is Underdog Fantasy legal & legit?
Yes, Underdog Fantasy is a legitimate daily fantasy sports platform that has paid millions of dollars in prizes over the last few years. The platform is legal in 40 U.S. states and Canada.

How old do you have to be to bet with Underdog Fantasy?
The minimum age for participating in Underdog Fantasy contests is 18 in all eligible states, excluding Alabama and Nebraska (19) and Arizona and Massachusetts (21).

Which is better, PrizePicks or Underdog Fantasy?
According to our ratings, Underdog Fantasy is slightly better than PrizePicks. Learn more in our Underdog Fantasy vs. PrizePicks Guide.

Which is better, Sleeper or Underdog Fantasy?
According to our ratings, Underdog Fantasy is slightly better than Sleeper. Learn more in our Underdog Fantasy vs. Sleeper Guide.

Which is better, Dabble or Underdog?
Underdog comes out slightly ahead of Dabble in our ratings but each has it's advantages and disadvantages. Learn more in our Underdog vs. Dabble Guide.

What is the Underdog Fantasy sign-up bonus and promo code?
The Underdog Fantasy sign-up bonus is a 50% deposit match up to $500. Use our exclusive promo code ODDS100 during registration to unlock this offer.

Does Underdog Fantasy offer a no-deposit bonus?
Underdog Fantasy currently doesn’t have a no-deposit bonus.

What are Underdog Fantasy alternatives?
Popular alternatives to Underdog Fantasy include Sleeper, Jock MKT, OwnersBox, FanDuel, and Thrive Fantasy.

>> Access the Underdog Fantasy Sign-Up Bonus With Promo Code ODDS100 Here

Underdog Fantasy Sign-Up Bonus

Underdog Fantasy Square

50% Deposit Match Up to $500

Dave Rathmanner

Dave Rathmanner is the Founder & CEO of Odds Assist. After struggling to find helpful sports betting resources and honest reviews when he first started betting, he decided to create the site he always wished he had. Dave has been betting on sports since NJ legalized it in 2018 and regularly analyzes sportsbooks to find the best options for bettors. Aside from creating new content for OA readers, Dave is also passionate about researching betting markets, creating models, and developing profitable betting strategies.