Sportsgrid Staff
Host · Writer - Published: 01/27/25

Traditional sports betting sites are not legal in all U.S. states. That said, there’s nothing stopping you from betting on your favorite sports in the U.S. via our top-rated social sportsbooks: SportsMillions, Fliff, and Legendz.
This page highlights the best social sports betting sites available to players in all U.S. states. I’ll explain how these sites operate and point out the similarities they share with sweepstakes casinos. You’ll also learn about the wealth of features and benefits offered by each of our top-recommended social sportsbooks.
Social sportsbooks allow you to make sports predictions on a number of different types of sports, as you would on a traditional sports betting site. The difference here is that you won’t have to invest any of your hard-earned money, and these platforms are free to play.
What’s more, you’ll receive generous bonuses and promotions as you start, allowing you to place sports predictions on your favorite sport and betting markets 100% free of charge.
Most sportsbooks feature virtual currency like Gold Coins and Sweepstakes Coins. As is the case with sweepstakes casinos, playing using Gold Coins is purely for fun, and Gold Coins have no real-world value.
Gold Coins are awarded to you in the form of welcome bonuses, daily login bonuses, social media competitions, weekly tournaments, and leaderboard contests.
If you run out of Gold Coins, social sportsbooks allow you to purchase GC packages, often at discounted rates. That said, there’s no obligation to do so, as there are multiple ways to increase your Gold Coin balance by simply engaging in the social sportsbook.
Social sportsbooks also operate by allowing you to claim free SC coins, which allow you to place sports predictions. However, these can be redeemed for gift cards and cash prizes. Sweepstakes Coins are awarded to you as part of welcome bonuses, daily login bonuses, and a number of promotions, as is the case with Gold Coins. However, you cannot purchase Sweepstakes Coins, but they are received complimentary with GC package purchases.
Sweepstakes Coins can indeed be redeemed for gift cards and cash prizes, as mentioned earlier. However, certain playthrough requirements do apply. All applicable redemption requirements will be outlined under the social sportsbooks’ terms and conditions.
The number of social sportsbooks in the U.S. is growing daily. That said, not all social sportsbooks are created equal, so you’ll need to know what to look out for to find the best social sportsbooks. I decided to review a number of social betting sites, and based on my expert opinion, these are the top three recommended social sportsbooks for U.S. players.
Our SportsMillions review showed that this brand is a recently launched social casino and sportsbook. However, it’s fast gaining popularity for a number of reasons.
The standout feature here is the Blitz ‘Em contest, which is a unique contest format where you don’t get to select lineups, but you will receive winnings based on real outcomes. The Blitz ‘Em section allows you to place sports predictions on a variety of major sports including NFL, MLB, MLS, NBA, NCAA, EPL, and more.
When placing predictions using Fixed Play, all selections must be correct to win. Alternatively, when using FlexiPlay, you have the chance to win a portion of the prize pool even if not all options are correct. You use Gold Coins and Sweeps Coins to place sports predictions and enter contests at SportsMillions.
Fliff, a social sportsbook, has been around since 2019 and still stands as one of the best social betting sites for U.S. players. Aside from a great welcome bonus, you’ll receive free daily coins and have the opportunity to receive bonuses via daily challenges and more.
Fliff offers extensive coverage of popular sports such as the NBA, NFL, and MLB, so it feels more like a traditional sportsbook. Unlike SportsMillions, Fliff offers a dedicated app for both iOS and Android, with high ratings in both stores.
The Legendz social sportsbook went live in November 2024, and despite its recent launch, it covers a wide range of sports and multiple betting markets. If you enjoy betting on major leagues like the NFL, NBA, and MLB, it’s all available here, with the inclusion of international events like soccer, tennis, and golf. Like SportsMillions, Legendz functions as both a sweepstakes casino and a social betting site.
Legendz makes use of Gold Coins and Sweeps Coins, which are awarded to you in the form of welcome bonuses and various ongoing promotions. While the site is fully accessible via desktop and mobile browsers, they do not have a dedicated app for Android and iOS devices, at this time. Legendz is also one of the new social casinos, offering a range of casino-style games, including live dealer selections.
The social sportsbook market is growing in popularity, with new social betting sites coming to the forefront regularly. These social sportsbooks cover a wide range of major sports and international events and include innovative features like SportsMillions’ Blitz ‘Em contests.
Bonuses and promotions are readily available to keep your Gold Coins and Sweeps Coins balance topped up, while our top recommended social sportsbooks, SportsMillions, Fliff, and Legendz, are accessible via desktops, mobile apps, and mobile browsers.
So, if you’re ready to explore the emerging and ever-expanding social sportsbook industry, why not sign up for our top recommendations listed on this page and start placing your sports predictions today?