Underdog Review: Full Review & List of Available States in 2026
This Underdog review highlights the main contest types available, including Best Ball and Pick’em. After claiming a play $5 and get $50 in bonus entries welcome bonus, I jumped straight into gameplay and found my way around the site.
For existing players, Underdog provides additional promotions, including referral bonuses and unique features like Rescues and Ladders. Stick with me as I break down everything you need to know about Underdog, including usability, bonuses, customer support, payment methods, security, and more.
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Overview: My review findings with pros and cons
During my Underdog review, I received a welcome bonus of $50 in bonus entries when I played $5. You can also check out the Underdog promo code available on the site. The site also features popular sports like the NFL, MLB, and NBA, along with a dedicated mobile app for both iOS and Android, which makes drafting and making picks very convenient.
However, there are areas where Underdog could improve. The site currently lacks a loyalty program, and while it covers the major leagues, the overall range of available markets is smaller compared to some competitors. Here's a quick view of the pros and cons of Underdog:
Status & licensing
Underdog is available in most US states. The site uses SSL encryption to safeguard player information and proudly carries the National Council on Problem Gambling (NCPG) seal, having been recognized as a Silver Member in 2024. Plus, it provides responsible gaming (RG) tools, showing a clear commitment to player safety. With these safeguards in place, it’s fair to say that Underdog is legit and secure for US players.
When it comes to licenses and regulations, DFS platforms need to meet different standards in different states. Through the course of this review, I confirmed that Underdog meets all of the requirements to operate in the states where it is available.
Design and user interface
My first impression of Underdog is that it feels like a premium DFS site, thanks to its sleek design and user-friendly layout. The yellow-and-white color scheme, bold fonts, and modern interface create a polished look that makes it enjoyable to use on both desktop and mobile. I found the experience of playing contests on the desktop version just as smooth and engaging as on the mobile app.
Desktop site
Before completing my Underdog sign-up, I explored the desktop site and found it easy to navigate. The top menu includes company details, product offerings like Draft games, and an About section. The homepage highlights the states where Underdog is available and proudly displays the $2 billion+ in prizes already paid out to players. This kind of transparency reassures users that an Underdog scam isn’t something to be concerned about, if anything, it strengthens my overall Underdog ratings.
I was pleased to discover that registration and gameplay work seamlessly on desktop as well as on the app. While there are minor differences in layout between the two platforms, the functionality is nearly identical. Making picks and entering amounts on the desktop was straightforward, with no issues at all.
Mobile app
Another reason my Underdog ratings are high is the mobile app experience. After completing my registration, the app quickly verified my location and loaded smoothly.
Navigation on the app is intuitive. The “Account” section is conveniently located on the static bottom bar, while on the desktop site, it’s placed at the top of the site. I appreciated the horizontal arrangement of sports such as NFL, MLB, and WNBA, which mirrors the desktop version and makes finding contests effortless. Drafting and making picks on the app was seamless, with the interface designed to keep everything quick, simple, and user-friendly. I had no issue logging in daily, given the convenience of the app.
Available Sports
| Available Sports | Available Sports |
| Fantasy Football | Fantasy College Football |
| Fantasy Baseball | Fantasy College Basketball |
| Fantasy Hockey | Fantasy Golf |
| Fantasy MMA | NBA Basketball |
| Soccer | Tennis |
| WNBA | Esports |
| Boxing | XFL/USFL |
Register with Underdog
During my Underdog review, the registration process was quick and seamless. Here’s a simple step-by-step guide to get started:
- Click the banners on this page to head to the official Underdog site.
- Tap the static download button at the bottom of your screen to get the Underdog app.
- Install and launch the app on your device.
- Allow geolocation so the app can display games and features available in your state.
- Enter your personal details, including email, username, password, and date of birth.
- Hit “Create Account”.
Welcome bonuses & active promotions
Underdog provides various promotions for both new and existing players. Here’s a breakdown of what I found during my latest Underdog review:
New customer offer
New players can claim a welcome bonus of Play $5, Get $50 in Bonus entries. In this case, you get a $50 bonus when you make your first play of at least $5.
I liked that this offer was straightforward, with simple terms and conditions. In my case, the site provided me with a promo code to activate the offer. You can also click the banners on this page to see bonus details specific to your region.
Remember to stick to your budget when dealing with this promo. Trying to deposit more just to get a bigger bonus is a bad idea, and you’ll have plenty of other opportunities to claim Underdog promotions.
Players must be 18 years or above (19 years or above in AL, NE; 19 years or above in CO for some games; 21 years or above in AZ, MA, and VA) and present in a state where Underdog operates. Terms apply. Offer not valid in MD, MI, NJ, NY, OH, and PA.
Concerned with your play? Call 1-800-MY-RESET or visit http://www.ncpgambling.org; NY: Call the 24/7 HOPEline at 1-877-8-HOPENY or Text HOPENY (467369).
Refer-a-friend bonus
Another promotion I found while conducting my Underdog review was the refer-a-friend bonus. By copying and sharing my referral code, I could invite friends to sign up. For each friend I got $10 in bonus funds.
There are terms and conditions, however. First, this offer is only valid if the referral is creating a new account for the first time. Existing and returning users don’t count. Second, for me to get the bonus amount, my referral had to make a deposit of at least $10, and then use that deposit amount in a DFS contest.
Finally, the $10 bonus I received wasn’t available for withdrawal right away. I had to use it once before withdrawing it.
Rescues
One of my favorite promotions on Underdog is the Rescues. This promo refunds your entry if an early injury or other eligible reason causes your selection to lose. For example, suppose a player participates in the first half of a game but doesn’t return in the second half due to injury, ejection, or another qualifying event. In that case, Underdog may “rescue” that pick.
At the moment, Rescues are available for select entries across NBA, MLB, WNBA, NFL, and CFB contests. However, keep an eye on the promotions page, as there is a good chance this coverage will change or expand with time.
VIP rewards
Underdog currently lacks a loyalty program or VIP rewards system. The DFS site could improve in this area, and hopefully, a rewards program will be introduced in the future.
Play on Underdog
During my review, I noticed that Underdog works a little differently from many fantasy sports sites, here’s what I uncovered:
Offer
Underdog runs games using snake-style drafts in most contests. In the Battle Royale format, for example, each manager completes a short draft before the slate begins. Unlike traditional DFS, it’s not a salary cap format, which simplifies roster construction while keeping strategy important.
Scoring in Underdog is based on official league statistics for each sport and contest type. Scoring varies between formats: Best Ball contests use a half-PPR (points per reception) system with assigned values for yards and touchdowns. At the same time, Pick’em contests award points based on whether a player’s stat goes “higher” or “lower” than a projected total.
Prize pools
Underdog hosts contests with both fixed and pool-based prize structures. Its Best Ball Mania tournament has offered multi-million dollar prize pools, sometimes exceeding $3 million. Pick’em and Rivals contests often use multiplier payouts, ranging from 3× to 20× your entry, depending on how many selections you get correct.
Community
Underdog doesn’t have an official roster forum on its site and app. Instead, players connect through social media platforms, including their large following on X and Facebook groups where they share tips, strategy, and bonus information.
Comparison
As noted, Underdog works a little differently from typical DFS sites. Here’s a quick comparison with other popular sites:
| Guaranteed prize pools | Salary cap | Style | Operator |
| Available | Not available | Drafting and predictions | Underdog |
| Available | $60,000 football contests | Traditional DFS lineups | FanDuel Fantasy |
Join a draft or tournament
Joining a draft on Underdog is straightforward. Follow these steps:
- Log in to your account.
- Navigate to the drafts lobby.
- Select the contest you want to enter.
- Check the contest scoring (PPR, half-PPR, turnovers) and confirm roster slots.
- Join the draft lobby and note your draft position before making picks.
Payment methods
Just as I did in my Sleeper review, I looked into the payment methods available on Underdog. Here’s what I discovered:
Deposit methods
Underdog supports a variety of deposit options, similar to what I observed in my recent Dabble review. Available methods include:
| Deposit method | Minimum deposit limit | Maximum deposit limit | Transaction fees | Transaction time |
| Trustly | $10 | $2,500 | None | Instant |
| PayPal | $10 | $2,500 | None | Instant |
| Credit cards, Visa, and Mastercard | $10 | $2,500 | None | Instant |
| Apple Pay | $10 | $2,500 | None | Instant |
Withdrawal options
Withdrawals on Underdog are processed through many of the same methods as deposits. Verification is required before funds are released. The options and typical processing times are:
| Withdrawal method | Minimum withdrawal limit | Maximum withdrawal limit | Transaction fees | Transaction time |
| PayPal | $10 | Not stated | None | 24 hours |
| Trustly | $10 | Not stated | None | 1-3 business days |
| Interchecks | $10 | Not stated | None | 3-7 business days |
Customer support
During my review, I wanted to see if Underdog is reliable when it comes to customer support. I found that it delivers 24/7 support through live chat, and when I tested it at different times of the day, responses came back in two minutes. Email support is also available, with replies typically arriving in less than 24 hours. In addition, Underdog offers a detailed FAQ section that covers accounts, deposits and withdrawals, promotions, and drafts.
Responsible gaming
Responsible gaming is another area where Underdog shows commitment. The site provides multiple tools to facilitate balanced play, including:
- Deposit limits
- Contest entry limits
- Spending limits
- Time limits
- Cool-off periods
- Self exclusion
You’ll also find contact information for different support helplines at the footer of the site, including the number for the 1-800-GAMBLER national helpline. With these features in place, it’s clear that Underdog is secure for US DFS fans who value safe and responsible gameplay.
User reviews & what others say
Since player feedback matters, I also looked at what others are saying about Underdog across credible platforms. On Reddit, some users voiced confusion about how the site works, while others mentioned dissatisfaction with its multipliers. On the flip side, some praised the platform for its simple and efficient withdrawal process.
On Trustpilot, Underdog currently holds a 1.7-star rating, with most complaints centered on payouts and account suspensions. However, app store ratings tell a very different story. On Google Play, the DFS app scores 4.6 stars, while on the Apple App Store it holds an impressive 4.8 stars. These higher ratings reflect the strong functionality and smooth user experience most players have with the app.
Expert verdict & final rating
So, how does Underdog work? At its core, Underdog is one of the leading fantasy sports sites in the US, offering a few different contest types for players. You can join the action either on the desktop site or through its dedicated mobile app, which is available for download on both the Google Play Store and Apple App Store. Underdog covers all the major sports, including NFL, MLB, NBA, NHL, and CFB, giving players plenty of options to draft, predict, and compete.
Both the desktop and mobile versions are intuitive and easy to navigate. When I signed up during my Underdog review, I received a $50 in Bonus entries when I made my first play of $5. To activate the offer, I used the promo code provided directly on the site. In terms of security, Underdog uses SSL encryption to protect player information and also provides responsible gaming tools, further proof that this site is safe and trustworthy.
Want to try Underdog for yourself? Click the banners on this page to create your account today.
FAQ
Does Underdog have a mobile app?
Yes. Underdog offers a dedicated mobile app available for download on the Google Play Store and Apple App Store.
Is there a loyalty program on Underdog?
No. Currently, Underdog doesn't feature a loyalty program or VIP rewards.
Does Underdog offer a refer-a-friend bonus?
Yes. By sharing your referral code, you can get $10 in bonus funds for every friend who signs up and makes a deposit.
Is there an Underdog desktop version?
Yes. You can register and play directly on the Underdog desktop site.
How can I register on Underdog?
Click the banners on this page to visit the official Underdog site. Enter your details, including name, email, username, password, and date of birth, then click "Create account" and you’re in.
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