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Big Market Players

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FanDuel has always been DraftKings older brother, and the company still has a marginal market share over their rival despite the gap closing in recent years. Part of the reason, even over 15 years later, for the decisive market share, is the fact that FanDuel got the leg up when they opened their doors in 2009.

 

Founded by Nigel Eccles, the company was the first participant in Daily Fantasy Sports, which was deemed legal by most states despite the infamous UIGEA banning online gambling. A specific allowance by the UIGEA for fantasy sports to be wagered upon opened the door for Eccles and company.

 

Still with over 6 million DFS players, the primary market has moved towards the sports gambling crowd— FanDuel boasts over 12 million registered users now. Just as DraftKings has prolific partnerships, FanDuel has fostered relationships with each major sports league in the U.S.

 

In October 2024, they aligned with Diamond Sports Group to rename the Bally Sports Network to the FanDuel Sports Network, perhaps the best example of their advertising prowess.

FanDuel

Online-legal in 22 States

Launched full sports-book in 2018

Launched Daily Fantasy Sports (DFS) in 2009

38.0% Market Share

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 DraftKings and FanDuel are the big guns in the sports-betting industry, with the two combining for the largest share of  the entire online sports-betting market. Neither sports book started with an online casino background. Instead, they got their start as “daily fantasy sports” platforms, which could be considered the first original form of sports wagering.

 

DraftKings was the second company to open their doors in 2012. Founded by a trio of executives from the company VistaPrint, the corporation emerged with success due to partnerships with the National Hockey League and Major League Baseball. These partnerships helped establish the first forms of in-stadium advertising that fans have become familiar with in the years since traditional sports-gambling was legalized. Since then, DraftKings is a household name in the sports-betting scene.

 

They’ve obtained official partnerships with Amazon Prime to be a leading sponsor of Thursday Night Football and notably have exclusive rights with the NFL to present the infamous NFL RedZone telecast each Sunday.

DraftKings

25 States + Washington D.C. 

Launched full sports-book in 2018

Launched DFS in 2012

34.8% Market Share

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BetMGM represents another organization whose legacy remains in the casino and traditional gambling enterprise, but the sports book branch owns a roughly 14% market share as of 2023 data.

 

BetMGM emerged on the scene when they launched a brick-and-mortar sports book in Mississippi in 2018, first launching their mobile app in New Jersey in the summer of 2019. Now spreading to other states, the sports book brands itself as “The King of Sports Books” with a luxurious feel to their branding strategy. BetMGM hosts a number of former athletes as brand ambassadors, including NFL legend Barry Sanders and “The Great One” Wayne Gretzky, of the NHL.

 

The sports book earned a unique partnership when they linked with X, formerly known as Twitter, earlier in 2024. The partnership now allows X to display live odds for games, with direct links to BetMGM’s website or app as users search through games. 

BetMGM

Legal in 25 states plus Washington D.C.

Launched brick-and-mortar in Mississippi in 2018

14% Market Share

BetMGM

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BetMGM represents another organization whose legacy remains in the casino and traditional gambling enterprise, but the sportsbook branch owns a roughly 14% market share as of 2023 data.⁹ BetMGM emerged on the scene when they launched a brick-and-mortar sportsbook in Mississippi in 2018, first launching their mobile app in New Jersey in the summer of 2019. 10 Now spreading to other states, the sportsbook brands itself as “The King of Sportsbooks” with a luxurious feel to their branding strategy. BetMGM hosts a number of former athletes as brand ambassadors, including NFL legend Barry Sanders and “The Great One” Wayne Gretzky, of the NHL. The sportsbook earned a unique partnership when they linked with X, formerly known as Twitter, earlier in 2024. The partnership now allows X to display live odds for games, with direct links to BetMGM’s website or app as users search through games. 

8 States + Washington D.C.

Launched online sports-book in 2019 

8.1% Market Share

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Things got interesting when sports gambling became legalized in the state of Florida-- notably, the Seminole tribe had to sign off on any online-gambling-related changes to the Florida regulations.

 

In 2020, Florida voters earned the vote to legalize sports-betting in the state, but it wasn’t until 2021 that Governor Ron DeSantis and the Seminole tribe reached an agreement. After a series of back-and-forths between courts, the Hard Rock Bet app finally launched in 2023 to a select group of loyalty customers.

 

By December 2023, the market opened to all Floridians over 21. Hard Rock Bet now dominates the sports-betting scene in Florida as the only legal sports-betting app, with notable partners like Post Malone. 

Hard Rock Bet

Only legal app in Florida

8 legal states

Launched online sports-book in Florida in Dec. 2023

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Caesars has been a player in the casino and gambling industry since the 1950s and is widely represented as one of the most recognizable casinos in the world at their headquarters in Las Vegas. Caesars, thus, is the first case of a sports book which has a deep root in the gambling industry.

 

While that has benefited them and brought the sports book to a roughly 10% market share, it pales in comparison to the way the big two sports books have an advantage from their early days as DFS participants. Officially launching their mobile sports book in 2018 in New Jersey, Caesars now operates in 26 states, plus Washington D.C.

 

The sports book has employed strategies like its competitors, with notable partnerships on a large scale with entities like the NHL and the NBA, working with their spokesman and comedian JB Smoove alongside numerous celebrities like the Manning family. Caesars notably became the first sports book to launch an on-premises sports book inside of a U.S. sports venue when they partnered with the Washington Capitals in 2021. 

Caesars

22 States + Washington D.C.

Launched app in 2018

5.3% Market Share

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Like the other sports books on this list, ESPN Bet has its own unique advantage in the sports-betting industry. The sports media giant’s arrival on the sports-betting scene instantly reaped the rewards of having such strong brand recognition that gave instant credibility to its sports book app.

 

ESPN Bet, which originated as Barstool Sportsbook before it was rebranded in 2019, surprisingly dented the market significantly upon their entry into the domestic market in November 2023, quickly obtaining a gaudy 8.1% market share in the first month of operation. That share has since decreased dramatically, shifting between 2-4% of the market share since then.

 

In an effort to increase market share, ESPN made the decision to link the interfaces between the ESPN app and the ESPN Bet app at the end of 2024, allowing for more seamless integration between the two entities. 

ESPN Bet

Legal in 19 States

Launched in Nov. 2023

2.8% Market Share

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Like ESPN, when Fanatics entered the sports-gambling scene, the company already had a designated familiarity among the target market of potential bettors. Fanatics has earned valuable licensing rights to just about every major sports league in the United States and the branding is rampant across the sports scene.

 

Fanatics launched their mobile sports book in August 2023 in four states, but now the app is legal in 22 states plus Washington D.C. in just over 18 months since its launch. Part of the reason that Fanatics was able to grow so quickly was due to the acquisition of former sports book PointsBet over the course of that timeframe.

 

Fanatics has a unique stake in the game from an advertising perspective, as the company offers players the ability to earn FanCash when placing their bets as a form of rewarding loyalty. Just as ESPN is actively integrating their media network with the sports-betting app, Fanatics from the get-go has bridged the gap between the merchandise industry and the sports-betting sector.

 

Other sportsbooks offer loyalty programs, but the Fanatics enterprise is able to leverage their position as the official licensor to offer users massive cash-back percentages in comparison. 

Fanatics

22 States and Washington D.C.

Launched in Aug. 2023

Primarily a Merchandising Entity

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Bet365 is the first sports book on this list that really made its impact internationally at first, with doors opening in 2000 in Stoke-On-Trent in the United Kingdom. With a step ahead in the global sports-betting scene, Bet365 legally operates in 11 states domestically, starting with New Jersey in August 2019. 

 

Unlike some of the other sports books listed above, Bet365’s push in the United States has been a slow and steady expansion. Their unique international presence offers increased capitals for advertising spending, which has contributed to valuable partnerships in recent years with the Cleveland Guardians of the MLB and the Washington Commanders of Virginia.

 

Only marketing in 11 states, the domestic spending is still minimal. In 2023, the sports book spent $41 million through November while FanDuel, for reference, spent roughly $264 million in the same time frame. 

bet365

11 Legal States

Launched app in 2019

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The BetRivers app is the first example of a non-Vegas casino launching a geographically-restricted mobile sports-betting app in the surrounding area. The Pennsylvania-based Rivers Casino launched their mobile app in June of 2019, introducing sports-betting to the state for the first time.

 

Since then, BetRivers has expanded to 15 states in the country, but lacks the national recognition as some of the bigger players in the game. Sponsorships and advertisements are heavily focused on geographical advantages, as evidenced by partnerships with the Philadelphia Eagles in the fan experience sector. They’ve also obtained title sponsorships with notable events like the annual NASCAR race at Dover International Speedway.

 

To supplement their sports book-centric advertising strategy, the company has also brought in Poker legend Phil Hellmuth to market both the casino and sports book sectors of BetRivers. 

BetRivers

Legal in 15 States

Launched app in June 2019

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Fliff, as well as a number of other “non-sports-betting-apps,” resides in a legally gray area that allows fans to wager on sporting events using virtual money instead of real dollars.

 

The contests on Fliff feature betting lines that are in accordance with most other true sports books-- players can bet on point totals, winners, the spread, individual player performance, and numerous other lines. The one key difference is that players aren’t wagering using real dollars-- instead, they play with “Fliff cash”, which can then be redeemed at a 1-for-1 exchange rate with real USD. That being said, this Fliff cash can’t be directly purchased-- it is only awarded as a promotional bonus for buying Fliff coins, referring friends, or other promotions.

 

Thus, it isn’t the case that Fliff just adds an extra step to avoid legal trouble-- perhaps more accurately, it adds 2 or 3 steps, which courts have determined is a legal practice. Notably, the age requirement in most states to play at all is still 18 years old in most states, decidedly lower than the 21-year requirement for traditional sports-betting.

 

In recent years, a new wave of these legally gray apps have emerged, with the label “DFS 2.0” being applied to apps like PrizePicks and Underdog. These apps use similar workarounds to avoid the true title of “sports book” while also avoiding regulation, a cause for concern as more people have access to wagering on events. 

Fliff (and others)

Legal in 45 of 50 States

# 11 App in "Sports" Chart on Apple App Store

Not technically a sports-book

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