Promo Code
100% Match Bonus up to $100
Underdog offers many DFS game types, including Best Ball. T&Cs Apply, 18+.
Verified 12/09/2022
RG Rating: 4.0
Expires: 12/31/2022

Underdog Fantasy Promo Code 

Underdog Promo CodeGRINDERS
Offer100% match bonus up to $100
Offer Date December 2022
TermsOffer for new players only. Must be 18 years of age and live in an eligible state.
GamesBest Ball, Snake Drafts, Prop Pick’ems
SportsNBA, NHL, MLB, NFL, PGA Tour, NCAAB, Esports, Soccer, MMA

Underdog Fantasy is one of the best fantasy sports apps in the industry. It has something for everyone. From Best Ball and snake drafts to player props and pick’em contests, not to mention excellent sign-up incentives and one of the best new player bonuses the industry has to offer, the Underdog Fantasy app is your best bet for daily fantasy sports entertainment.

We’ll touch on all of those details and more, including some tips and advice, in this Underdog Fantasy review.

More on Underdog Fantasy

Right now you can enter and play daily, weekly, season-long, and pick’em contests for multiple sports. Currently in season are NBA, college basketball, NHL, and MLB. NFL Best Ball contests are also taking shape on Underdog Fantasy’s app. The Underdog Fantasy lobby is loaded with options, including pick’em games for NBA, CBB, NHL, Soccer, MMA, Esports, MLB, PGA, and NFL player props.

You can also participate in live fantasy snake drafts for this week’s basketball and hockey slates. And if it’s best ball you’re looking for, you can start drafting teams for MLB and NFL best ball leagues, plus drafts are available for the NBA season.

Check out the table below for a full list of what is currently being offered on the Underdog Fantasy app. Here we show you what leagues and sports are in-season, what kind of contests are offered for each sport, plus notable tournaments that include massive guaranteed prize pools.

What is Underdog Fantasy?

Nine years ago, daily fantasy sports sites were popping up left and right. Things have shifted since then, with FanDuel and DraftKings cementing themselves as industry leaders. While our options have largely consolidated, all fantasy sports lovers, whether it be DFS or season-long, NFL or NBA, should beware of the Underdog — Underdog Fantasy, that is.

Underdog Fantasy App
Underdog Fantasy App

Spearheaded by founder Jeremy Levine, a veteran in the DFS industry who previously founded the sites StarStreet and Draft, Underdog Fantasy is Levine’s most ambitious fantasy sports project yet. And it’s safe to say people, including some major personalities and investors, have taken notice.

After a successful rollout ahead of the 2020 NFL season, a plethora of big-name investors, including Mark Cuban, Kevin Durant, Adam Schefter, The Chainsmokers, Nas, Future, and more, wanted to place their bets on Levine and his Underdog Fantasy team in 2021.

With a team like that, you know the product is going to be awesome. So let’s take a closer look at what Underdog Fantasy has to offer and what differentiates it from other sites.

Why Sign Up at Underdog Fantasy?

As mentioned, Underdog Fantasy is a newer site, but it was founded by industry veterans. The Underdog app is one of the best in the gaming industry, as you can see by its ratings in mobile app stores. On Google Play, the Underdog App has been downloaded more than 50,000 times and has a 4.5-star rating. In the App Store, Underdog Fantasy has a 4.7-star rating and ranks 27th among top Sports apps.

Underdog Fantasy Sign-Up Process
Underdog Fantasy Sign-Up Process

Aside from a user-friendly app and awesome promotions, there are a few more reasons you should choose Underdog Fantasy.

  • Better than traditional fantasy leagues: Best ball drafts are simple and easy. You don’t have to manage your roster, but you get to experience all the fun and excitement of drafting fantasy teams.
  • Massive Contests, Huge Prizes: The Underdog Fantasy lobby includes massive contests. Right now, one contest has $10M in prizes!
  • Become a millionaire: Underdog Fantasy is making not one but two new millionaires this football season, via Best Ball Mania III. 1st place wins $2M, and 2nd place wins $1M. The entry fee is only $25!
  • Various sports: You don’t just have to play NFL. Underdog also offers contests and props for college football, NBA, college basketball, MLB, PGA, NHL, and more.
  • The best app: Again, there are no hiccups when it comes to the Underdog app. It’s smooth and user-friendly. In many ways, it’s better than industry giants and is just as good as what you find from DraftKings and FanDuel.

More Underdog Fantasy Promotions and Bonuses

Once you sign up using our Underdog Fantasy promo code GRINDERS, you’ll find more promotions and bonuses offered on their app every day. One of the more popular promotions is reduced prop offers, which work similarly to odds boosts and free bets that you see at online sportsbooks.

Basically, by reducing the prop odds, they’ll give you a free prop pick. For example, they may offer Patrick Mahomes over/under 0.5 yards. This is a guaranteed pick that you include in a prop parlay.

Keep in mind, you can only use this type of promotion once per day. In other words, you can’t make multiple prop parlays that include the promotion. Once you use it, it’s no longer available. Luckily there will likely be a similar promotion and offer the next day!

Another promotion users can take advantage of on the Underdog Fantasy app, is by referring their friends to sign up and download the app themselves. By referring friends, you get a $10 bonus for every person that signs up from your referral. Additionally, your referrals get a $10 bonus, in the form of a free entry, to start their account.

You can quickly invite friends and family to join you on the Underdog Fantasy app by sharing your personalized referral link to your group texts and season-long fantasy leagues. You can also compete with your friends in customizable season-long Underdog Fantasy Best Ball leagues.

Of course, make sure to review the terms and conditions of all the promotions and bonuses offered before you use them. There are stipulations that limit how many players you can refer, and there are other details regarding rollover requirements for bonus funds in your account.

What’s Available in the Underdog Fantasy Lobby?

SportsProps Pick’emDaily Snake DraftsBest BallNotable TournamentsPrize PoolTop Prize
NFLBest Ball Mania III$10M$2M
NBAThe Dance (Playoffs)$200K$30K
MLBThe Dinger$100K$20K
NHLThe Big Zamboni$20K$4K

Underdog Fantasy began by offering four games for the four major sports NFL, NBA, MLB and NHL. The site didn’t stop there, though. They have since added college sports, including college basketball during March Madness to their game menus.

As far as their contest types go, snake drafts are for season-long, daily, and weekly contests. If you want action on today’s games, you can join 2-6 man contests and start drafting now. Or you can ditch the draft and go straight to Underdog’s Pick’em offerings, called Over/Under & Rivals, allowing you to win as much as 20x your entry.

Underdog’s Pick’em games feature player prop lines and work much like parlays at online sportsbooks. Simply put: The more props you pick, the more you can win.

A look at fantasy contests you can play with Underdog promo code.
Pick-em games are easy to play on Underdog. Just pick Over or Under.

Fantasy Scoring

Underdog’s fantasy scoring isn’t much different than what you see elsewhere. For their fantasy football leagues, Underdog Fantasy has adopted 0.5 PPR (points per reception) scoring.

Follow your fantasy scores live on the Underdog Fantasy app.
Underdog makes it easy to follow your scores in real-time.

Underdog Fantasy Promo Code & App: Pros & Cons

Underdog Fantasy is a great DFS platform. While there are many things we love about it, there are a few things that could be improved. Here are the things we like and the things we don’t like about Underdog Fantasy.

What we like

  • Best Ball Mania is awesome!
  • App is easy to use
  • Deposit match is a great new customer promotion
  • Props pick’em game is easy for beginners to understand and play
  • Season-long, weekly, and daily contests available
  • Wide variety of games offered
  • Available in 40 states

What we don’t like

  • Limited number of sports available
  • Only a few banking options
  • Honestly, there isn’t much we don’t like. Underdog Fantasy is great!

How to get the most out of your Underdog account

One sure-fire way to gain an edge on the Underdog Fantasy app is to download the RotoGrinders Underdog browser extension. The extension displays player projections for props in NBA, NFL, NHL, and more, courtesy of the RotoGrinders expert data team.

The extension shows props and projections for multiple statistical categories and sports, and can be used to find value in Underdog’s pick’em contests. For more details watch the informational video below:

Remember, to access this Underdog Fantasy tool, you must be a RotoGrinders premium subscriber and must sign in to the extension by clicking on the icon just right of the Chrome address bar.

Underdog Fantasy FAQ

What is Underdog Fantasy?

Underdog Fantasy is an online DFS site that offers fantasy contests for cash prizes that include best ball, props, pick’em, and snake drafts.

Is Underdog Fantasy legit?

Yes, the Underdog Fantasy app is legit with a massive group of high-profile investors that includes Mark Cuban, Kevin Durant, Adam Schefter, and more.

How long do Underdog Fantasy drafts take?

Users can select between two different draft speeds, Fast or Slow, depending on their needs and their desired draft experience. Each user is given 30 seconds per pick in Fast Drafts, while Slow Drafts give users 8 hours per pick.

Which states have Underdog Fantasy?

You can play Underdog Fantasy in 40 states. Underdog isn’t available in AZ, DE, HI, ID, IA, LA, MT, NV, PA, or WA — yet. But with pending applications in various states, Underdog Fantasy may enter your yard soon, if it’s not already there!

Is Underdog Fantasy legal in Canada?

Underdog Fantasy is available in all of Canada except Ontario as of April 4, 2022. Ontario no longer allows DFS but does accept sports wagers.

Does Underdog Fantasy have an app?

You can play online or use one of Underdog Fantasy’s mobile apps, which are available for iOS and Android. Underdog’s app is extremely easy to use for best ball and snake drafts as well as prop contests.

How do I make a deposit on the Underdog app?

You can easily make a deposit to your account using PayPal or your preferred credit card.

How does Underdog Fantasy pay out winnings?

Underdog Fantasy pays out users quickly via PayPal and banking accounts. First, submit a withdrawal request, then you can expect funds to reach your account within 2-3 business days following your initial request.

Is Underdog Fantasy gambling or sports betting?

No, Underdog Fantasy is a daily fantasy sports operator in 40 states, which is not considered gambling or a sportsbook. However, the company has shown interest in joining the sports betting industry and they may eventually launch a mobile sportsbook app in the future. is the home of the daily fantasy sports community. Our content, rankings, member blogs, promotions and forum discussion all cater to the players that like to create a new fantasy team every day of the week.

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