In less than seven years since PASPA was struck down, the regulated U.S. sports betting market has gone from a Nevada-only experiment to an industry handling hundreds of billions of dollars in wagers.
Cumulative handle has already passed 558 billion dollars, generating around 50 billion dollars in gross revenue for sportsbooks and more than 1 billion dollars in state taxes in 2025. At the same time, the engine behind much of that growth is not just TV ads or big league partnerships, but an increasingly sophisticated affiliate chain.
In 2024, affiliate marketing spend in the U.S. crossed the 10 billion dollar mark, and, for 2025, eMarketer projections suggest the channel will pass 12 billion dollars on its way to almost 16 billion by 2028. Sports betting is one of the verticals that leans hardest on performance to acquire users.
With 38 states plus Washington, D.C., and Puerto Rico already offering some form of legalized sports betting, and 30 states allowing online betting via apps or websites, the fight for attention is huge. Almost half of the adult population has access to multiple operators, dozens of bonuses, and, most importantly, a flood of content telling them where to bet.
From Half A Trillion In Handle To The Affiliate Boom
The turning point was the 2018 Supreme Court ruling that removed the federal ban on sports betting outside Nevada. From that moment, each state gained the freedom to regulate the space, opening the door to a cascade of launches.
In 2024 alone, the regulated market handled roughly 150 billion dollars in bets and generated close to 13 billion in revenue, producing almost 3 billion in taxes in a single year. That steady growth is not explained only by enthusiastic fans, but by a marketing infrastructure built to capture every click.
In states where mobile is dominant, something like 80% of bets are already placed through apps or websites, which favors commission models tied to deposits, bets, or revenue share.
As more operators entered the market, affiliates moved into the space that, in other industries, had been dominated by the big digital media platforms. Review sites, comparison portals, newsletters, and creators on X, TikTok, and Twitch all compete for the same user at the exact moment they type a search, open a highlight reel, or look for the best bonuses for the NFL season.
That is why Bovada alternatives list, like the one compiled by Charlie Pearson, have become the starting point for bettors who already know the traditional brands and want to understand what else is out there, including options outside the best-known circuit.
From a marketing standpoint, sports betting has entered the phase where measurable results are what matter most. For advertisers used to buying broad brand awareness, the affiliate pitch is simple: pay commissions only when a user signs up, deposits, or reaches a minimum activity level.
Sports Betting Meets The Affiliate Marketing Playbook
Studies from eMarketer show that affiliate marketing, which historically sat in the lower-funnel box, now influences a growing share of e-commerce sales. The firm estimates that online retail sales driven by affiliate programs will pass a quarter of a trillion dollars in 2027, representing a large slice of total e-commerce.
In the betting world, the same model has been adapted to welcome bonuses, boosted odds, and bet insurance. Market reports indicate that as states mature from a regulatory standpoint, competition is no longer just about who offers the biggest bonus, but about who makes the best use of user data coming through affiliates.
Things like sports preferences, average stake size, sensitivity to promos, and engagement along the customer journey. For users, this means that the seemingly neutral article explaining how to bet on March Madness or how parlays work is usually tied to a commission model in the background. And it means the industry’s growth depends directly on affiliates’ ability to educate, convert, and retain those new bettors.
Fewer TV Ads, More Data, And Helpful Content
Interestingly, the sports betting boom is happening alongside a pullback in traditional advertising. The American Gaming Association, using Nielsen data, shows that the number of sports betting ads on TV fell by around 45% in 2024 compared with 2021, while total gambling-related ad volume shrank for the first time in years.
At the same time, data shared by ESPN indicates that sportsbooks represented only 0.8% of national TV commercial spend in 2024, versus 1.4% for alcohol advertising, even though many viewers feel like betting brands are everywhere during live games.
In practice, part of that budget has shifted into channels where measurement is more precise, such as deals with content creators, regional influencers, sports podcasts, and, of course, affiliates with strong SEO and social footprints.
Changes on Google’s side also played a role. After updates like the Helpful Content Update and tougher rules on site reputation abuse, portals that relied on generic content about betting and casinos saw their traffic fall sharply.
The result was a natural filter. Publishers that could not deliver original analysis, real data, and meaningful comparisons started losing ground to more specialized outlets or to creators who actually understand odds, lines, and the nuances of local sports.
