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Tennis as a betting heavyweight
People who do not bet assume football swallows everything, and people who do not bet on tennis assume it is a niche. Both are wrong, and the gap between perception and reality is exactly what makes understanding the market’s true size so useful. Tennis is not the biggest betting sport, but it is the one growing fastest, and growth is where the future value lies.
The headline that stops me every time I look at the figures is the growth rate: tennis is forecast to be the fastest-growing betting sport, with a compound annual growth rate of 13.83 percent projected through 2031. That is not a sport treading water — it is a sport accelerating, driven by a structure uniquely suited to the way people bet now. The fourteen days of continuous, point-by-point action a Grand Slam offers is fuel for the modern in-play market in a way few other sports can match.
So let me lay out the actual numbers, because the scale and shape of this market explain a great deal about why tennis betting behaves the way it does and where it is heading.
Market share and growth
To place tennis properly, you have to see it against the giants. Football remains the dominant betting sport, holding 35.27 percent of the online sports betting market in 2025, with Europe alone accounting for just over half of global revenue. Tennis does not challenge that top spot, and it would be misleading to suggest otherwise.
What tennis has instead is momentum. While football is large and mature, tennis is the sport adding share fastest, with that projected 13.83 percent annual growth rate outpacing the field. The reasons are structural and they compound: tennis is played year-round across a global calendar, it offers an enormous volume of matches at every level, and its scoring system is perfectly suited to live betting. There is genuine appetite behind the growth too — a survey found that 21.1 percent of sports bettors said they preferred betting on tennis, a striking figure for a sport that trails football in overall volume. That combination of structural fit and bettor enthusiasm is why the forecasts point sharply upward.
Geography shapes the picture as well. Europe alone accounts for just over half of global sports betting revenue, and tennis enjoys a particularly strong following across the continent, which positions the sport well to capture the market’s growth. For a British bettor, this matters in a practical sense: the strong European appetite for tennis means the markets you bet into are deep, well-priced and competitive, with operators fighting for tennis business in a way that benefits the customer. The practical lesson for a bettor is that tennis markets are deepening and proliferating year on year. More liquidity, more market types, more operators competing for tennis business — all of which means more opportunity for those who understand the sport, and more noise to cut through.
The in-play share of tennis
If one number explains the character of modern tennis betting, it is the in-play share, and it is remarkable. Live betting now dominates the sport to a degree that pre-match betting almost looks like a relic.
The overall market has tilted decisively towards live betting — in-play accounted for 62.35 percent of the online sports betting market in 2025 — but tennis takes this much further than the average. At some major operators, around 90 percent of all tennis bets are placed in-play, a concentration that outstrips almost every other sport. The reason is the structure of tennis itself: every point resets the situation, every game offers a fresh betting decision, and the momentum swings that define a match create a constant stream of repricing opportunities. A football match has relatively few moments that meaningfully move the odds; a tennis match has hundreds. That density of decision points is what makes tennis the in-play sport par excellence, and it is why the live markets are where the overwhelming majority of tennis money — and tennis edge — now lives.
This concentration has a knock-on effect on how operators build their tennis offering. Because the money is in live betting, books invest most heavily in their in-play tennis product — faster pricing, more live markets, slicker interfaces — which in turn makes live betting even more attractive and deepens the cycle. For the bettor, it means the centre of gravity has moved: the pre-match price you place the night before matters far less than it once did, and the real action, along with the real opportunity to outread a fast-moving market, happens after the first ball is struck.
The data deals behind the market
None of this in-play betting would be possible without the invisible infrastructure that feeds it, and the scale of investment in that infrastructure tells you how seriously the industry takes tennis. Every live price you see is built on a stream of real-time data, and that data is now big business.
The consolidation has been dramatic. One major data company paid £225 million to acquire a portfolio of betting rights including tennis, locking up the point-by-point data feeds that power live pricing across the industry. That kind of money is not spent on a declining asset — it is a bet on tennis betting continuing to grow, and on control of the data being the key to the market. For the ordinary bettor, this infrastructure has two consequences. The prices are sharper and faster than ever, because they are built on professional-grade real-time data, which makes beating them harder. But the proliferation of markets that the data enables also creates more corners to find value in, if you know where to look. The market’s tilt towards live betting is the single most important fact about how tennis is bet today, and I explore how to actually trade those fast-moving markets in my guide to live Wimbledon betting.
Why is tennis growing faster than football for betting?
Tennis is structurally suited to the way people bet now. It is played year-round across a global calendar, offers a huge volume of matches, and its point-by-point scoring is ideal for live betting, where the market is increasingly concentrated. Football is larger but mature, whereas tennis is adding share fastest, with growth forecasts well above the field through 2031.
What share of tennis betting is live?
The overwhelming majority. While in-play betting takes around 62 percent of the online sports betting market overall, tennis goes much further, with close to 90 percent of bets at some major operators placed in-play. The sport’s structure, where every point creates a fresh betting decision, makes it the most live-betting-dominated of the major sports.
