NBA Betting Market Size: How Big the Industry Has Become
Available in USBasketball Is Now 15 to 18% of Global Betting Activity
When I started betting on the NBA nine years ago, basketball was a niche sport in the UK betting landscape — buried below football, horse racing, tennis and even cricket on most operators’ homepages. The transformation since then has been staggering. Basketball now accounts for 15 to 18% of global betting activity, driven by the NBA’s international expansion, the explosion of player-prop markets and a generation of fans who grew up consuming the sport through social media and streaming.
The global sports betting market is valued at $125.12 billion in 2026, with projections pointing toward $325.71 billion by 2035 at a compound annual growth rate of 11.24%. The NBA sits at the centre of this growth because it offers exactly what modern bettors demand: high-scoring, fast-paced action with deep statistical coverage, year-round availability from October to June, and a culture of analytics that makes data-driven betting feel natural rather than niche.
Understanding the scale of the market matters for bettors because size drives liquidity, and liquidity drives efficiency. A market processing billions in handle is harder to beat than a market processing millions, but it also offers tighter margins, more consistent odds and better protection against manipulation. The NBA betting market is now large enough to be genuinely competitive, which shapes how and where you should look for edge.
Global Handle, US Revenue and the Post-PASPA Boom
The US market is the engine driving NBA betting’s growth. Americans legally wagered $166.94 billion on sport in 2025, and operator revenue hit a record $16.96 billion — a 22.8% increase year on year. Regulated sportsbooks paid $3.71 billion in taxes, up 32.4% from the previous year. Since the Supreme Court struck down PASPA in 2018, Americans have placed more than $600 billion in cumulative legal sports bets, and the NBA has been one of the primary beneficiaries.
Sports betting is now legal in 38 US states and jurisdictions, and the market is dominated by two operators: FanDuel holds 39.6% of the regulated handle, DraftKings holds 35.3%. Together they control roughly three-quarters of the market. This duopoly matters for UK bettors because the opening lines set by these platforms cascade to every other operator globally, including UK-licensed bookmakers. The efficiency of the US market is the baseline against which all NBA odds are set.
The NBA itself has leaned into the relationship. The league signed a media-rights deal worth $77 billion starting in the 2025-26 season, and a significant portion of that value is tied to the league’s appeal as a betting product. The NBA offers fourth-quarter streaming for $1.99 — a product explicitly designed for in-game bettors — and has partnered with data providers to ensure official statistics are available for market settlement. The league is not just tolerating betting; it is building its business model around it.
NBA Betting Within the UK Gambling Landscape
The UK gambling industry generated gross gaming yield of £16.8 billion in the year to March 2025, with the online sector growing 8% year on year. About 10% of UK adults participate in online sports betting, and roughly 290 million online bets are placed monthly on real events. Football dominates — it generates over 40% of global online betting revenue — but basketball’s share is growing faster than any other mainstream sport in the UK market.
The demographic overlap between the NBA’s audience and the UK’s most active betting population is striking. Adults aged 18 to 34 make up 41.03% of the NBA’s global audience, and this is the same demographic driving the growth of mobile sports betting in the UK. Fifteen percent of UK men participate in sports betting, compared with 4% of women, and the NBA’s predominantly male viewership aligns directly with this skew.
What the UK market lacks is depth of NBA coverage comparable to the US. While major operators offer spread, moneyline, totals and player props, the range of alternative markets — quarter lines, team totals, alternative spreads at multiple increments — is thinner than what US bettors enjoy. This gap is closing as operators invest in their basketball offerings to capture the growing demand, but for now, UK NBA bettors work with a somewhat narrower menu than their American counterparts.
Where the NBA Betting Market Is Headed Through 2031
The NBA’s own market is projected to grow from $13.92 billion in 2026 to $20.04 billion by 2031, at a compound annual growth rate of 7.56%. That growth is fuelled by international expansion, digital engagement — social media and apps are growing at 8.37% annually — and the continued deepening of the league’s relationship with the betting industry.
NCAA President Charles Baker acknowledged that the phone changed everything, noting that people were not thinking in 2018 about how fast sports betting would end up in the palm of your hand. That observation applies equally to the NBA. Mobile apps now account for 78% of online betting activity globally, and the convenience of placing an NBA bet from your sofa at 1am GMT has transformed the UK market’s relationship with American basketball.
For bettors, the growth trajectory means two things. First, the market will become more efficient over time as more money, more data and more sophisticated models enter the space. The easy edges that existed five years ago are already harder to find, and they will continue to compress. Second, the range of available markets will expand, creating new niches — micro-props, quarter-specific lines, in-play derivatives — where inefficiency will persist longer because the markets are newer and thinner. For a broader view of how the UK’s regulatory environment shapes this growth, I have written separately about the UKGC’s role in NBA betting.
How much money is bet on the NBA globally each year?
Exact global NBA handle is not publicly reported, but basketball accounts for 15 to 18% of global betting activity, and the global sports betting market is valued at $125.12 billion in 2026. In the US alone, the NBA is one of the most heavily wagered sports, with Americans legally betting $166.94 billion on all sports in 2025. The NBA’s share of that handle is estimated at roughly 20 to 25%.
What share of UK sports betting is on basketball?
Basketball represents a growing but still relatively small share of UK sports betting, behind football, horse racing, tennis and cricket. The exact percentage is not published by the UK Gambling Commission, but operator data suggests basketball’s share of UK handle has roughly doubled over the past five years, driven by the NBA’s popularity among younger bettors.
Written by the editors at Betting Tips nba.
