UP TO $50
Underdog is a fast-growing fantasy and prediction market platform focused on sports like the NFL, NBA, and MLB. It offers innovative contest types such as Best Ball, Pick’em, and other event-based markets where users can predict real-world outcomes.
Underdog combines fantasy sports and prediction trading in a single platform, with a straightforward interface that works for beginners and experienced players alike.
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Comparison with other Prediction Markets
Underdog stands out for its focus on sports-based contests and an easy-to-use fantasy-style interface. While Robinhood and Kalshi lean toward financial and political event contracts, Underdog keeps things simple with sports-focused markets.
Compared to Crypto.com, which operates in the decentralized prediction space, Underdog feels more structured and beginner-friendly. It’s ideal for players who prefer user-friendly mobile experiences over complex trading systems.
| Platform | Main Focus | Ease of Use | Regulation | Best For |
| Underdog | Sports & Fantasy Contests | Very High | U.S. DFS Regulation | Fantasy & Sports Fans |
| Robinhood | Financial & Sports Events | High | SEC & FINRA | Casual Traders |
| Kalshi | Economic & Political Events | Moderate | CFTC-Regulated | Prediction Market Enthusiasts |
| Crypto.com | Crypto & Web3 Predictions | Low–Moderate | Unregulated (Global) | Blockchain & Crypto Users |
Introduction to Underdog
Founded in 2020 by Jeremy Levine, Brandon Stakenborg, and Trevor John, Underdog quickly emerged as one of the fastest-growing fantasy and prediction platforms in the U.S. The company modernized the daily fantasy sports experience by combining traditional fantasy competition with streamlined, prediction-based contests designed for mobile-first users.
Underdog’s clean interface, fast-paced gameplay, and beginner-friendly design have made it popular with both casual fans and experienced fantasy players. Its signature formats—Best Ball and Pick’em—helped reshape the DFS landscape by eliminating the need for constant lineup management in favor of a more automated, user-friendly experience.
The company has also attracted backing from high-profile investors including Mark Cuban, Kevin Durant, and BlackRock, supporting its expansion across multiple U.S. markets.
Today, Underdog operates as a regulated daily fantasy sports platform in several states, with a strong emphasis on security, compliance, and responsible gaming practices.
What is the sports betting industry saying about Underdog?
The industry sees Underdog as a bold innovator in fantasy sports and prediction-style contests. Reports highlight how the brand’s fast-rising formats and growth trajectory reflect wider shifts in gaming and sports entertainment.
An analysis by Eilers & Krejcik Gaming describes the company as emblematic of “DFS 2.0”, where skill-based contests intersect with event-based outcome markets.
At the same time, regulatory commentary featured by Covers notes that Underdog’s status in markets like California could be significantly impacted by evolving legal opinion, highlighting how its business is navigating a shifting compliance landscape. In short, the tone is optimistic about Underdog’s innovation and market potential, tempered by awareness of regulatory complexity and industry disruption.
Underdog website and app experience
The Underdog platform is built with simplicity in mind. The website’s clean design makes it easy to browse contests, check upcoming drafts, and view live results without any clutter. Everything from logging in to submitting an entry feels fast and responsive, especially on mobile.
The navigation bar clearly separates Drafts, Pick’em, and Best Ball contests, allowing users to jump into their preferred format instantly. The overall experience feels smooth and well-organized, particularly for players who enjoy quick, on-the-go participation.
Did I like the app?
Yes, I genuinely enjoyed using the Underdog app. It’s fast, intuitive, and perfectly designed for mobile play. I liked how I could build entries in seconds without scrolling through unnecessary menus. Deposits and withdrawals were seamless, and notifications were helpful without being intrusive. My only critique would be the lack of deeper stat filters, but overall, the app feels polished, engaging, and built for everyday fantasy players.
How to create an account on Underdog
Signing up for Underdog is quick, straightforward, and takes just a few minutes. The process is designed to get you from registration to your first contest without unnecessary steps.
Here’s a step-by-step guide to help you get started:
- Visit the Underdog website or download the mobile app: The app is available on both iOS and Android, and the website works seamlessly on desktop and mobile browsers.
- Click “Sign Up.”: You’ll find this button at the top right of the homepage or on the opening screen of the app.
- Enter your personal details: Provide your name, valid email address, date of birth, and create a secure password.
- Verify your location and age: Underdog uses geolocation to ensure you’re in a legal state and meet the minimum age requirement (usually 18 or 21, depending on location).
- Complete identity verification: You may need to confirm your identity by providing the last four digits of your SSN or uploading a valid ID.
- Deposit funds and start playing: Once verified, you can add funds using PayPal, debit card, or Apple Pay, and immediately enter your first contest.
Proving person info: What’s needed?
A valid email, physical address, and proof of identity are required to meet state and federal verification standards.
Making your first trade on Underdog
Once your account is ready and funded, making your first trade or entry on Underdog is incredibly simple. The platform blends traditional fantasy gameplay with prediction-style contests, so you can participate in just a few taps.
Here’s how to make your first trade or entry step-by-step:
- Log in to your account: Head to the Underdog app or website and sign in with your verified details.
- Choose your contest type: You can pick between Pick’em, Best Ball, or Daily Drafts. Each has a different gameplay style, Pick’em focuses on player predictions, while Drafts let you build a fantasy lineup.
- Select your market or player picks: In Pick’em, you’ll see players with specific stat lines, such as “more or less than 250.5 passing yards.” Choose two to five players to build your entry.
- Set your stake and confirm your entry: Decide how much to play and whether you want a Flex or Power entry (Flex allows a small miss, while Power pays more for perfect picks).
- Track your results live: Once your entry is submitted, you can follow it in real time as games unfold. The app updates stats automatically, so you can see how your predictions perform.
Underdog event contracts
Underdog’s event contracts work as prediction-style fantasy entries, where you forecast player or team performance rather than trading traditional betting lines. These contracts are offered across a variety of sports and formats, primarily through Pick’em and Best Ball contests.
In Pick’em, you choose whether a player will finish above or below a projected stat line, such as “LeBron James over 26.5 points.” In Best Ball, you draft a roster once and let Underdog automatically set your optimal lineup each week based on performance.
Each event contract comes with a fixed, transparent payout structure, so you know the potential return before confirming your entry. This creates a straightforward, strategy-focused way to engage with contests across different sports.
How to place a contract on Underdog
Placing an event contract on Underdog is intuitive, even if you’re new to daily fantasy or prediction-style platforms. The interface is built to simplify the process from selection to confirmation.
Here’s how to get started:
- Open the Underdog app or website: Log into your verified account and make sure you have funds in your wallet.
- Go to the “Pick’em” section: You’ll see a list of active events across popular sports such as the NBA, NFL, and soccer. Each player’s name appears with projected stats (e.g., “Patrick Mahomes – 280.5 passing yards”).
- Choose your selections: Tap “More” if you think the player will exceed the projection or “Less” if you expect them to fall short. You can combine two to five players in one entry.
- Select your play type: Pick between Flex (for safer, smaller returns if one leg misses) or Power Play (for higher rewards if all picks hit).
- Enter your stake: Type in the amount you want to commit. The potential payout updates automatically.
- Confirm your entry: Tap “Submit Entry” to finalize your contract. Your results will update in real time once games begin.
Differences between Underdog and competitors
Underdog stands out from platforms like Robinhood, Kalshi, and Crypto.com by focusing solely on sports-based fantasy contests rather than financial or crypto trading. While Robinhood combines traditional investing with limited prediction-style sports markets, Underdog keeps things simple and entertainment-focused through Pick’em and Best Ball formats. It’s built for casual and competitive players who want a fun, fast-paced experience without managing portfolios or analyzing stock charts.
Compared to Kalshi’s regulated economic and political event markets, Underdog’s predictions stay within the sports world, offering a more accessible and relatable experience. Crypto.com, meanwhile, revolves around digital assets and blockchain investments, which can feel complex or volatile to new users. Underdog avoids that by using a clean interface, fixed multipliers, and straightforward contests. In short, it merges the excitement of fantasy sports with the structure of prediction markets, creating a transparent and easy-to-use platform for sports fans.
Sports selection at Underdog
Underdog offers one of the broadest sports selections in the daily fantasy and prediction market space. Users can participate in contests across major leagues such as the NFL, NBA, MLB, and NHL, alongside college football and basketball, golf, soccer, and even MMA and boxing. Seasonal events like NBA All-Star Weekend, MLB Home Run Derby, and niche competitions such as NASCAR and esports also make regular appearances.
Their Pick’em and Best Ball formats allow players to engage with a variety of sports year-round. Pick’em contests center on player projections, choosing whether an athlete will record more or less than a listed stat while Best Ball lets you draft an entire team for the season without weekly management. These formats make Underdog’s sports selection both exciting and flexible for beginners and fantasy veterans alike.
What could be added?
While Underdog covers most major U.S. sports, there’s still room to grow. Expanding into international sports like cricket, rugby, and Formula 1 would attract global fans, while introducing women’s leagues such as the WNBA and NWSL in greater depth could broaden engagement. Adding live in-play contests would also enhance interactivity and keep players engaged throughout every game.
Tips and strategies for traders
Success on Underdog comes down to smart decision-making and understanding player performance trends. Start by researching player stats, matchups, and recent form before entering Pick’em contests. Using a mix of reliable data sources and recent news updates will help you make more accurate “Higher” or “Lower” predictions.
Many experienced users also recommend diversifying entries across different sports or players to reduce the impact of one bad result. Instead of putting all your focus on one contest, spread smaller entries across multiple games to balance risk and potential reward.
For Best Ball drafts, focus on roster construction and balance. Prioritize consistency over flash, reliable weekly performers often yield better long-term returns than high-variance stars. Pay attention to bye weeks, positional depth, and stacking opportunities, like pairing a quarterback with a top receiver from the same team.
Finally, take advantage of Underdog’s insurance options and promotional boosts, which provide safety nets if one pick misses. The key is to think strategically, manage entries like a portfolio, and avoid emotional plays. A steady, informed approach turns Underdog from a casual fantasy app into a true skill-based trading experience.
Underdog customer support
Underdog keeps customer support simple and accessible. Players can reach the team via email at support@underdogfantasy.com, through the live chat feature on the website or mobile app, or by reaching out on X. There is also a detailed Help Center with FAQs covering the most common topics, including deposits, withdrawals, contest rules, and account verification.
In testing, response times were solid, with most questions answered within a few hours. The support team came across as friendly and knowledgeable, handling both basic and more technical questions without any issues.
Security and safety
Underdog prioritizes player safety through advanced encryption, identity verification, and strict compliance protocols. All transactions use SSL encryption to protect sensitive data, while user accounts feature two-factor authentication and biometric logins for added security.
The platform also separates player funds from operational accounts, ensuring that winnings are safely held in a segregated bank account. Underdog operates under state-level regulatory oversight, maintaining compliance with fantasy sports laws across the U.S. Additionally, it offers responsible gaming tools such as deposit limits, session timeouts, and self-exclusion options. Together, these features create a trustworthy and secure experience for all users.
My verdict on Underdog
Underdog delivers a refreshing take on fantasy trading, blending simplicity with depth in a way that appeals to both newcomers and seasoned players. Its Pick’em and Best Ball formats keep gameplay exciting year-round, while the sleek mobile app ensures a smooth and intuitive experience.
The platform’s strong security standards, fast withdrawals, and transparent rules build confidence among users. Though prize pools are smaller than some competitors, Underdog’s focus on fair play and accessibility makes it one of the most enjoyable and user-friendly options in the prediction market space. A solid 9/10 for innovation and ease of use.
Underdog FAQ
Yes, you can log into your Underdog account from any device, including desktop, iOS, or Android. All activity syncs automatically in real time.
Most contests are settled within 30 minutes after the final game concludes, with winnings credited to your account shortly after.
No, Underdog does not charge fees on deposits or withdrawals. All transactions are free and processed securely.
Yes. Users can enter multiple contests simultaneously as long as they meet the entry requirements for each one. Results and payouts are handled separately for every contest.