Underdog Fantasy Promo Code ON3: Get $1000 Bonus Cash

The Underdog Fantasy promo code ON3 is your ticket to claiming one of the DFS industry’s best welcome offers. New users who sign up and use this code can receive a 50% match worth up to $1,000 in bonus cash on their first deposit.

If you’re looking for the details behind this welcome offer or the Underdog Fantasy platform in general, this review is for you. I’ll dive into everything you need to know about the Underdog promo code plus the DFS product’s mobile app, website, and various contest formats.

What Is the Underdog Fantasy Promo Code?

🤑Underdog Fantasy Promo Code	ON3
💰Underdog Fantasy Welcome Offer	Get up to $1,000 Bonus Cash when you make your first deposit!
📍Eligible States	AL, AK, AR, CA, DC, GA, IL, IN, KS, ME, MN, MS, NE, NM, NY, NC, ND, OK, OR, RI, SC, SD, TX, UT, VT, VA, WY & WI
✍️Terms & Conditions	Must be 18+ and a first-time user at Underdog
✅Promotion Last Verified	January 28, 2025

The Underdog promo code is ON3. When you use this code during signup, you’ll receive a 50% match on your initial deposit, worth up to $1,000 in bonus cash.

This means if you deposit $2,000, you’ll get an additional $1,000 to play with. If that maximum amount of $2,000 sounds intimidating, don’t worry. You can still receive a 50% match when depositing as little as $10.

Underdog Promo Code Terms & Conditions

Qualifying for the Underdog promo code requires an initial deposit of at least $10. This offer comes with a 1x playthrough requirement, meaning you must wager the deposit and bonus amount once before any withdrawals can be made. Additionally, all bonus cash must be used within 60 days or it will be forfeited.

Be sure to read the full terms and conditions to understand all requirements and restrictions.

How to Register and Claim the Underdog Promo Code

Registering and claiming the Underdog promo code ON3 is as easy as ever. These are the steps I followed to get my bonus:

1. Visit the Underdog Fantasy website or download the Underdog Fantasy mobile app using any of the links on this page.
2. Click on the “Sign Up” button to create a new account.
3. Fill in your personal information, including full name, email, and password.
4. Enter the promo code ON3 during the registration process to ensure you receive the bonus.
5. Make your first deposit of at least $10 to qualify for the bonus.
6. Once your deposit is confirmed, your bonus cash will be credited to your account within 72 hours.

Once you are registered and your deposit is made, you can start exploring the various contests and features Underdog Fantasy offers.

My Favorite Pick ‘Em Props for January 28

Date	League/Sport	Matchup	Player	Higher/Lower
1/28	🏀NBA	Rockets vs. Hawks	Jalen Green	⬆️ Higher 22.5 Points
1/28	🏀NBA	Lakers vs. 76ers	Tyrese Maxey	⬆️ Higher 40.5 Pts + Rebs + Asts
1/28	🏀NCAAB	St. John’s vs. Georgetown	Thomas Sorber	⬆️ Higher 11.5 Rebounds + Assists

Where Is Underdog Fantasy Legal?

Underdog Fantasy operates in 40 states plus Washington D.C., making it accessible to a wide range of users. However, certain states have restrictions on specific contest types. For example, pick’em contests are permitted in many U.S. states, including California and New York, but not in Connecticut, New Jersey, and Nevada due to ongoing litigation. Players in states where pick’em contests are not legal may still access other game formats offered by Underdog Fantasy like draft contests and Best Ball tournaments.

In states like Massachusetts and Arizona, users must meet higher age requirements (21+ vs. 18+) to participate in fantasy sports contests. Always ensure you are aware of your local regulations to comply with legal requirements.

📍 Legal Underdog Fantasy State	🤑 Pick’Em	🏆Champions	✍️ Drafts
Alabama	❌	✅	✅
Alaska	✅	❌	✅
Arizona	❌	✅	✅
Arkansas	❌	✅	✅
California	✅	❌	✅
Colorado	❌	✅	✅
DC	✅	❌	✅
Florida	❌	✅	✅
Georgia	✅	❌	✅
Illinois	❌	✅	✅
Indiana	✅	❌	✅
Kansas	❌	✅	✅
Kentucky	✅	❌	✅
Maryland	❌	❌	✅
Massachusetts	❌	✅	✅
Michigan	❌	❌	✅
Minnesota	✅	❌	✅
Mississippi	❌	❌	✅
Missouri	❌	✅	✅
Nebraska	✅	❌	✅
New Hampshire	❌	✅	✅
New Jersey	❌	❌	✅
New Mexico	✅	❌	✅
New York	✅	❌	✅
North Carolina	❌	✅	✅
North Dakota	✅	❌	✅
Ohio	❌	❌	✅
Oklahoma	✅	❌	✅
Oregon	✅	❌	✅
Pennsylvania	❌	❌	✅
Rhode Island	✅	❌	✅
South Carolina	✅	❌	✅
South Dakota	✅	❌	✅
Tennessee	❌	✅	✅
Texas	✅	❌	✅
Utah	✅	❌	✅
Vermont	✅	❌	✅
Virginia	❌	✅	✅
West Virginia	❌	✅	✅
Wisconsin	✅	❌	✅
Wyoming	❌	✅	✅

Is Underdog Legit and Safe to Use?

Yes, Underdog Fantasy is 100% legitimate and safe to use. The platform is fully licensed and operates legally in many states across the U.S., offering daily fantasy sports (DFS) and player prop betting. It is regulated by the neccessary authorities and adheres to strict security protocols to protect users’ personal and financial information.

Underdog Fantasy uses encryption and other safety measures to ensure that your data and transactions are secure. Additionally, the company has a strong reputation within the DFS community for its user-friendly interface, fair play, and prompt payouts.

As with any online platform, it’s important to use strong security practices, such as enabling two-factor authentication (2FA) and being cautious with your account information. But overall, Underdog Fantasy is widely regarded as a trustworthy and safe platform for fantasy sports and prop betting.

My Experience at Underdog Fantasy

In my personal experience, I’ve had a great time using Underdog Fantasy. The platform is super user-friendly, which made it really easy to jump in and get started with my first entries. I’ve tried a mix of their formats—some best ball drafts and a few pick’ems—and each offers its own unique excitement and advantages. The drafts are quick but still give you a lot of room to strategize, and I love how the app keeps everything streamlined, so you’re never lost in the process.

One of my favorite things about Underdog Fantasy is the ability to draft with a mix of established stars and sleepers, which really adds to the thrill. The platform is a lot of fun because it’s not just about long-term fantasy. Instead, I’m tasked with making quick, strategic decisions based on matchups. Overall, it’s been a blast to use and a great way to make watching sports even more exciting.

What I Learned About Underdog Fantasy

• The app’s clean and intuitive interface made it easy for me to locate different game formats, whether I was drafting or making prop bets, without feeling overwhelmed by complicated menus or settings.
• Underdog Fantasy offers a variety of ways to play, from Best Ball drafts to pick’ems and player props, giving you multiple ways to stay engaged with fantasy sports, no matter your preference. I really appreciated the variety of games and contests offered by the platform.
• Best Ball drafts on Underdog Fantasy offer a unique twist, where you only draft your team once, and the app automatically optimizes your lineup each week based on player performance. It’s a great way to stay engaged without the hassle of managing your team throughout the season.

What Could Underdog Fantasy Improve On?

• While the Underdog app is strong, it could benefit from more in-depth research features, like player analysis, injury reports, and advanced stats, to help users make more informed decisions during drafts and prop bets.
• Underdog Fantasy could enhance user retention by introducing a loyalty program or rewards system for regular players. This could include bonuses, free entries, or exclusive contests for long-term users, incentivizing continued play and rewarding commitment.
• While Underdog Fantasy offers great contests, there could be more opportunities with smaller entry fees but still sizable prize pools. This would make the platform more accessible to casual players who want to compete for bigger rewards without the higher stakes.

Existing User Promotions at Underdog

Underdog Fantasy does a fantastic job of offering its existing users a variety of promotions to keep things exciting. Existing users will be able to benefit from several promotions after claiming their welcome bonus, including the following:

Split the Pot: First TD

Underdog recently unveiled a special promotion for the NFL Playoffs. Starting this weekend, existing users can earn their share of a $100,000 prize pool during each game of the Divisional Round by correctly selecting the game’s first touchdown scorer.

Each user will have 3 Tokens to use per game, each of which must be used in separate entries. Simply apply the token to whichever player you believe will score the first rushing/receiving touchdown of the game to earn a share of $100,000 in bonus cash!

Even if your entry ends up losing, as long as you correctly selected the first touchdown scorer, you’ll still be in line to collect a share of the bonus cash!

Discount the Dogs

Get your hands on discounted entries this college football season with Discount the Dogs! In short, Underdog will discount the line on select college football players while offering the same odds as the original number. This promotion is a great way for existing users to gain an edge after they’ve already claimed their welcome bonus.

Thursday 30%

Make your Thursdays more exciting with Thursday 30%! When you apply this token to any qualifying entry, you’ll enjoy a 30% profit boost on your potential winnings. Whether you’re playing fantasy or making picks, this is the perfect way to kick off your weekend with some extra value.

Vulture Protection

Vulture Protection has your back when things don’t go as planned. If you select a running back to score more than 0.5 touchdowns and a different player on their team ends up scoring, you will receive a refund for your entry as long as that was your only losing selection. It’s a safety net for the unpredictable nature of sports, ensuring you’re still protected even when luck isn’t on your side.

No Sweat Tokens

A No Sweat Token gives you the peace of mind to play without worrying about losing. If you don’t hit on your entry, you can get a refund up to a certain amount, making it easier to stay in the game and try again without the fear of losing your entire stake.

More Money Mondays

Start your week off right with More Money Mondays! Every Monday, enjoy three separate 10% profit boost tokens to use on any entry! Whether you’re gearing up for the week’s fantasy leagues or looking for some early-week action, this promotion gives you more bang for your buck.

Refer a Friend

Underdog Fantasy’s Refer a Friend program makes it easy to earn additional rewards by sharing the fun with others! Simply refer friends to Underdog, and when they sign up and make their first $10+ deposit, you’ll receive a $25 bonus!

It’s a win-win: your friend will still be eligible for the $1,000 deposit match and you get rewarded for helping expand the Underdog community. The more friends you refer, the more bonuses you can stack up, making it a great way to increase your bankroll while sharing the excitement of fantasy sports!

Underdog Mobile App Review

The Underdog Fantasy mobile app is highly rated, with 4.8-star ratings on both of the major app stores. Apple and Android users alike praise the Underdog Fantasy app for its user-friendly interface, which makes navigating and entering fantasy contests a breeze.

As an Apple user myself, I can vouch that it’s easy to make deposits, with Apple Pay being the most convenient for my uses. The withdrawal process, while slightly more cumbersome, is still manageable, with options like PayPal and electronic checks.

The app supports various fantasy formats, including Pick’em contests and Best Ball leagues, making it versatile for all types of DFS enthusiasts.

Underdog Desktop Website Review

The Underdog desktop site is as equally impressive as the app, featuring a bright and engaging user interface with customizable themes, fast loading speeds, easy navigation for entering contests, and unique geolocation technology to ensure that only eligible users can access their accounts based on their location.

The desktop version includes a 24/7 live chat feature for customer support, ensuring that help is always available when needed. While the desktop site is optimized for ease of use, the mobile app offers a more refined experience for users on the go.

Strong security measures, including SSL encryption and two-factor authentication, protect user information, making the platform both safe and reliable.

Game Formats Offered at Underdog Fantasy

Underdog Fantasy specializes in offering three key game formats: Best Ball, Pick’em, and Daily Drafts. These formats cater to different types of fantasy sports players, so whether you prefer the long-term commitment of Best Ball or the daily excitement of Pick’em and Daily Drafts, you should find a contest that appeals to you.

Best Ball

Best Ball contests on Underdog are unique in that they do not require in-season roster changes, setting them apart from traditional fantasy leagues. Participants draft their teams and then rely on player performances throughout the entire season to accumulate points each week. This format is ideal for those who want to enjoy fantasy sports without the hassle of weekly management.

Underdog is known for hosting some of the largest Best Ball contests, such as Best Ball Mania, which offers substantial prizes (just ask the $3 million winner in 2023).

Pick’em

The Pick’em format on Underdog lets users create parlay-style bets by selecting player props, with payouts increasing as more selections are added. In these contests, users predict whether a player will go over or under a projected stat.

One of the appealing aspects of Pick’em is the potential for significant payouts. You can select anywhere between 3-8 picks per entry, and if you go with 8, you can win up to 325x the initial stake. Underdog also features two types of Pick’em contests: Over/Under and Rivals, allowing players to choose from various player prop bets. This format is perfect for those who enjoy making quick, high-stakes decisions.

Daily Drafts

Daily Drafts at Underdog typically involve six-round drafts that cater to various sports, allowing players to compete against a select number of opponents. These drafts occur throughout the year and usually feature a snake draft format.

In addition to standard multi-game drafts, participants can also enter single-game fantasy contests. This format is ideal for those who prefer a more dynamic and fast-paced fantasy sports experience.

Sports Betting at Underdog

Note that Underdog Fantasy is separate from Underdog Sports, as the latter is a sports betting site rather than DFS. Available in far fewer states at the moment, Underdog Sports is subject to stricter regulations due to its focus on real money gambling.

Available Sports & Leagues at Underdog

Underdog Fantasy offers a diverse range of sports and leagues to choose from, ensuring that there’s something for every type of sports fan. Underdog Fantasy has expanded its offerings to include:

• Football (National Football League, NCAAF)
• Basketball (National Basketball Association, NCAAB)
• Baseball (Major League Baseball)
• Hockey (National Hockey League)
• Soccer (Premier League, La Liga, Bundesliga, Serie A, and MLS)
• Tennis
• Golf
• eSports (League of Legends, CS:GO, and Dota 2)

Banking Methods at Underdog Fantasy

Underdog Fantasy offers a couple of industry-standard banking methods for deposits and withdrawals:

Deposit Options at Underdog Fantasy

Depositing funds on the Underdog app is easy and instant, with options including credit/debit cards (American Express, Discover, Visa, and Mastercard) and PayPal.

The minimum deposit amount is set at $10, making it accessible for most users. Importantly, there are no fees associated with depositing funds, allowing users to maximize their bankroll.

Withdrawal Options at Underdog Fantasy

Underdog’s app also streamlines the withdrawal process, which you can complete via PayPal or debit card. PayPal withdrawals typically take 1-2 business days, while debit cards can take a bit longer, but both methods are reliable.

Withdrawals are always free, meaning you don’t have to pay to take home your rightful winnings.

Note that when you initiate a withdrawal, Underdog forces you to withdraw at least $10 if you have more than that in your account. If you have less than $10, you can withdraw whatever remains in your account.

Customer Support at Underdog Fantasy

Underdog Fantasy offers a customer support chat to help find answers to any questions about account management, contest inquiries, or any other issues. There’s also an Underdog Fantasy FAQ for further support. If you can’t find the answer on your own, you can talk to a live agent via chat. At this time, there’s no phone number to contact.

The platform also offers responsible gaming tools and self-exclusion options for users who need to manage their gameplay more effectively.

Responsible Gambling at Underdog Fantasy

Underdog Fantasy takes responsible gambling seriously, providing various tools and resources to help users manage their gameplay. These include self-exclusion options, deposit limits, and state-specific resources for managing gaming-related issues.

The platform encourages users to play responsibly and offers customer support to assist with any concerns related to responsible gaming. This proactive approach ensures that players can enjoy their fantasy sports experience in a safe and controlled manner.

For further support, don’t hesitate to call 1-800-GAMBLER to speak with someone at the National Problem Gambling Helpline.

Underdog Fantasy Strengths & Weaknesses

Similar to any other DFS platform, Underdog Fantasy has its strengths and weaknesses. Understanding these can help you make an informed decision about whether this is the right fantasy sports platform for you.

Strengths of Underdog Fantasy

One of the standout strengths of Underdog Fantasy is its focus on Best Ball competitions, which are increasingly popular among users. The platform also boasts a user-friendly interface, making it accessible for both new and experienced players. Significant prize pools and unique promotions add to the excitement, with potential winnings reaching up to $1,000,000 in some tournaments.

Underdog Fantasy is also well-regarded for its transparent approach to promotions and its strong community engagement through social media and the Underdog Network. This combination of features makes it a compelling choice for fantasy sports enthusiasts looking for a dynamic and rewarding experience.

Weaknesses of Underdog Fantasy

Despite its many strengths, Underdog Fantasy has some weaknesses. The platform has a limited selection of sports compared to some of its competitors, which might be a drawback for users looking for a wider variety. Customer support is available only online, with the lack of a dedicated phone service being inconvenient and impersonal for some users.

Additionally, Underdog Fantasy does not offer a no-deposit bonus for new users, a feature commonly found on other daily fantasy sports platforms. The referral program, while beneficial, is less lucrative compared to rival platforms, offering only modest credit for new sign-ups.

What I Love About Underdog Fantasy

Personally, I love Underdog Fantasy because it offers something for everyone, whether you’re a seasoned fantasy sports player or just getting started. The platform is widely available, with legal access in many states, allowing me to enjoy fantasy sports anytime, anywhere. The range of contests is amazing— whether I want to enter daily fantasy sports contests, pick player props, or try out unique formats like Best Ball, there’s always a new challenge to dive into.

What really sets Underdog apart, though, are the countless promotions available to existing users. From Thursday 30% boosts to No Sweat protection, there’s always a way to maximize my chances of winning at Underdog. The combination of variety, rewards, and user-friendly design makes Underdog Fantasy my go-to platform for fantasy sports.

Underdog Promo Code FAQs

To help you navigate the world of Underdog Fantasy, we’ve compiled answers to some of the most frequently asked questions about the platform and its promo code.

What is the Underdog promo code?

The latest Underdog Fantasy promo code is ON3, which allows new users to claim a bonus of up to $1,000 when they make their first deposit. By entering the promo code during account registration, users will receive a 50% match on their initial deposit. The promotion is available to new customers only and can be used across all contest formats offered by Underdog Fantasy.

Is Underdog Fantasy legal?

Yes! Underdog Fantasy operates legally in 40 states and Washington D.C., though legality can vary based on local regulations. Players typically need to be at least 18 years old to participate, although some states have higher age requirements, such as 21 in Arizona and Massachusetts. In states like Alabama and Nebraska, players must be 19 years or older to use the platform. Users should stay informed about local regulations to ensure compliance with legal requirements.

Is Underdog Fantasy legit?

Yes, Underdog Fantasy is a legit platform. It complies with federal and state laws regarding and ensures only eligible users can play via a stringent verification process.

Which states have access to Underdog?

Users can play Underdog Fantasy in multiple states, including Alabama, California, Florida, Illinois, and New York, among others. However, some states have specific restrictions or age requirements for participation. States like Connecticut and Delaware do not allow access to Underdog Fantasy contests due to ongoing litigation.

What sports can I choose from at Underdog?

Underdog Fantasy offers contests across numerous sports, including the NFL, NBA, MLB, NHL, and various college sports. The platform primarily supports Underdog contests for these four major leagues, which are the most popular among users. In addition to traditional sports, Underdog Fantasy also offers options for esports and soccer for its Pick’em games.

Does Underdog offer existing user promotions?

Underdog frequently provides promotions and bonuses for existing users, although these differ from the offers available to new users. Active customers may receive occasional perks like free squares in pick’em parlays or discounts on player props. Additionally, Underdog has a referral bonus program where users can earn $10 in bonus cash for each friend they refer who signs up and makes a deposit.

What is the minimum entry fee at Underdog?

The minimum entry fee for contests on Underdog can start as low as $3, making it accessible for most users.

What banking options are available at Underdog?

Underdog Fantasy offers limited banking methods for deposits and withdrawals, primarily utilizing credit cards, debit cards and PayPal.