Why Sports Fans Are Treating Online Betting Like a Companion to the Game, Not the Main Event

US sports betting keeps growing, but the clearest part of the story is where that growth now lives. According to the American Gaming Association's 2025 State of the States report, commercial sports betting revenue reached $13.78 billion in 2024, with online revenue up by more than 27 percent while retail revenue fell by more than 23 percent, based on calendar-year data compiled from state gaming regulators.

That tells us something useful right away. Betting is moving closer to the way people already follow sports: on phones, during live games, across apps and alongside everything else fans do while they watch. For many, placing a bet has become part of the viewing routine rather than a separate outing.

This article leans on two solid sources for that reason. One is the American Gaming Association's regulator-based market data; the other is Deloitte's 2026 Digital Media Trends release, built on a survey of 3,575 US consumers age 14 and older, fielded in October and November 2025 by an independent research firm.

The Game Has More Tabs Open

A modern sports fan rarely sits with one screen and one stream of information. Deloitte found that 55 percent of fans engage across multiple platforms, and that figure rises to about 70 percent among Gen Z and millennial fans.

That feels familiar because it is familiar.

For plenty of people, game night now includes a live stream on the TV, highlights on social, player news on a phone, fantasy updates, group chats and a running look at stats. Deloitte's data backs that up from another angle too: 52 percent of fans say social platforms are their main way to discover new content, while 44 percent say they find content on social and then go somewhere else to watch, listen or buy the full version.

That broader pattern helps explain why betting often sits off to the side, not in the centre. It joins a set of digital habits fans already have.

• You're watching the game live.
• You're checking clips, stats and updates on your phone.
• You might place a small wager for extra interest, then go right back to the game.

That last step feels less like a separate event and more like one more tab you've opened. It's part of the same attention flow.

There's another clue in Deloitte's numbers. About 80 percent of consumers identify as fans, and fans spend $71 a month on streaming compared with $56 for non-fans, or 27 percent more. People who care about sports already invest time and money across connected media, so a modest bet can slot into that routine without becoming the whole reason they showed up.

Pocket-Sized While Game-Side

Technology has made this easier, and access plays a huge part in it. By December 31, 2024, 31 US jurisdictions had active mobile sports betting, while 37 had brick-and-mortar sports betting, according to the American Gaming Association.

That wide mobile footprint changes the feel of the activity. You don't need to build an outing around it. You can be on your sofa, at a friend's place or half-watching the pregame show while checking injury news and lineups on your phone. 

The rollout is still fairly recent in several places. The same AGA report notes that Delaware, North Carolina and Vermont launched mobile sports betting during 2024, while Kentucky, Massachusetts and Maine recorded their first full year of sports betting revenue in 2024. In plain terms, more fans are getting used to betting as an easy add-on to the sports habits they already had.

That ease also helps explain why online growth has outpaced in-person betting so decisively. In 2024, online sports betting revenue rose by more than 27 percent, while retail sports betting revenue dropped by more than 23 percent. The numbers suggest convenience has become part of the draw.

Fandom First and Wager Second

It helps to keep the scale of the audience in view. The AGA says 21 percent of American adults placed a sports bet in the past year, while 55 percent took part in some form of gambling. Sports betting is mainstream enough to be familiar, but it still sits inside a larger entertainment picture.

That larger picture starts with fandom. People follow teams, rivalries, fantasy players, playoff races and streaming content long before any wager enters the conversation. Betting often comes later, as a way to sharpen attention during a close game or give a regular-season matchup a little extra edge.

Recent market totals reinforce the point that this behaviour is growing with digital sports culture, not apart from it. ESPN reported in February 2026, citing AGA data, that Americans legally wagered $166.94 billion on sports in 2025 and generated a record $16.96 billion in sports betting revenue, up 11 percent and 22.8 percent from 2024 respectively. That is substantial growth, yet it arrives at the same time fans are spending more on streaming, moving across more platforms and building richer second-screen routines.

So here's the more interesting question: if fans already watch, chat, clip, track and stream sports across multiple devices, is it surprising that some now add a small wager as one more form of participation?

Probably not.

What stands out is how ordinary the pattern has become. Betting can sit beside highlights, social feeds, fantasy dashboards and live stats without pushing them aside. For many fans, the game is still the main event. The bet just travels with it.

More Than a Bet Slip

Online betting now fits naturally into the wider habits of US sports fans because it travels with the way they already watch.

That doesn't mean every fan wants it, or that every game needs it. It means the role has changed.

As legal betting keeps expanding, with 2025 setting new records for both handle and revenue, the clearest takeaway is a practical one: for many people, betting works best when it stays in its place, close to the game, easy to reach and secondary to the fun of following sports in the first place.

When fandom is already active, social and spread across screens, maybe the real story isn't that betting became bigger; maybe it simply became easier to carry alongside everything fans were already doing.