Forecast: World Cup Prediction Market Volume Could Hit $2.5 Billion in the US

The 2026 World Cup is projected to attract greater than $2.5 billion in buying and selling quantity throughout US prediction markets, with Kalshi taking in an estimated $1.47 billion of it, in keeping with DeFi Rate projections.

As a world occasion that has traditionally drawn restricted US curiosity, it arrives at the actual second these markets have the scale and widespread US entry to soak up it and quite a few firsts that make this completely potential. 

The 2026 World Cup runs 104 matches throughout the group stage and knockout rounds — greater than double the 2022 event’s 64 and much bigger than a March Madness bracket or the NBA playoff run, which is why quantity is projected to run high.

Interest in fixtures will decide how high this will get

How massive this market will likely be, is determined by a number of variables. We modeled three eventualities beneath, and landed in the almost definitely situation of $1.47B

The conservative case (~$0.85 billion) assumes World Cup matches commerce thinly, with restricted US curiosity in fixtures between different international locations. This is unlikely, however may occur if the matches fall brief or curiosity dwindles with the month lengthy event.

The base case (~$1.47 billion) assumes matches commerce at US-domestic playoff ranges, the place March Madness video games averaged roughly $13 million every, touchdown the event slightly below March Madness total. 

The explosion case (~$1.93 billion) displays a surge in first-time participation, the form of leap that adopted broad access to the Super Bowl—an higher benchmark relatively than a ceiling.

Winner market clearing $2M per day

With lower than two weeks earlier than kickoff, the winner contract is now operating on a trajectory of almost $2 million a day — roughly two and a half occasions the tempo March Madness’s champion market ran earlier than at the similar timeline, and a couple of.1X of NBA Championship Winner market. 

The World Cup Winner market comes in at $203–336 million, with a base case close to $253 million.

The numbers driving the totally different layers

The 104 matches ($1.19B base): This is the engine of the forecast — roughly 80% of the complete. Each match was assigned to an curiosity tier (marquee, premium, commonplace, long-tail) utilizing present buying and selling quantity to rank the matchups, then priced towards what comparable accomplished video games truly completed at: March Madness single video games (which averaged about $13 million, topping out above $52 million for the remaining) and NBA playoff sequence. We additionally cross referenced towards Champions League curiosity. 

The winner contract (~$253M base): Projected from its personal stay trajectory. As of late May, the winner contract reached $48 million and was roughly two and a half occasions the tempo the March Madness champion market ran at the similar level earlier than its personal event, 13 days out.

Applying the manner accomplished champion contracts develop from the begin of their occasion by to settlement produces a $203–336 million vary. It is unlikely, although not unimaginable to achieve PGA-level numbers. 

Smaller layers. Advancement markets (will a workforce attain the spherical of 16, quarterfinal, and many others.), anchored to NBA’s equal development markets, add roughly $9 million. The Golden Boot — the World Cup’s individual-award market, anchored to NBA’s MVP markets — tasks to about $12 million, already outpacing its NBA equal. 

A bundle of novelty and prop markets (squad bulletins, halftime present, group props) provides a couple of million extra.

How we acquired right here

The forecast is constructed bottom-up: each class of World Cup market is projected individually, then summed. Each layer is anchored to a accomplished, US-domestic occasion of the similar structural kind — March Madness and the NBA playoffs — as these are the closest comparables for a way Americans commerce a significant event on a US prediction market. Soccer occasions weren't used as anchors, however as a foundation for curiosity on buying and selling fixtures and exercise on sport day.

This is a US-hosted summer time tentpole and the related query is the way it will commerce, not how European membership soccer does.

The forecast rests on three accomplished Kalshi occasions, all measured on the similar trade-tape foundation:

• March Madness 2026: ~$1.6 billion complete; 109 particular person video games averaging ~$13 million every; champion contract $169 million.
• NBA 2026 playoffs: champion contract ~$229 million; per-series markets averaging ~$19 million.
• 2026 Champions League: roughly 91 p.c of every match’s quantity traded on sport day, versus ~31 p.c for March Madness video games and ~23 p.c for NBA sequence.

These set the per-event “ranges” that the World Cup markets are anchored to.

Across 109 March Madness video games, a sport’s pre-event quantity rating corresponded to its remaining quantity rating with a correlation of 0.65 — a reasonable, helpful sign that lets DeFi Rate tier World Cup matches by anticipated dimension, although it doesn’t pin down any single match’s remaining complete.

Importantly, the mannequin makes use of present World Cup quantity primarily to rank matches into tiers, to not instantly extrapolate remaining quantity.

The distinction between Kalshi and the remaining quantity is layered in based mostly on Polymarket US numbers now and a hedge on DraftKings, Fanduel and different prediction markets. These are unknown. 

Caveats that might shift in both path

The match layer is the swing issue, and it rests on one unmeasurable assumption. This is the first massive 12 months of prediction markets and the first World Cup. 

The query turns into does the event entice US-domestic-tournament-level quantity — or fall brief as a result of most matches lack a US rooting curiosity? Neither of those questions could be answered in advance. 

But it does account for nearly the complete hole between the conservative and high edge instances. 

• If group-stage matches between non-US groups commerce skinny, the complete lands close to the backside of the vary; if the US-hosted novelty drives broad engagement, it approaches the prime.
• Through our evaluation, we discovered 90%+ of quantity concentrates violently on sport day for European soccer matches traded on a US alternate. This means the bulk of the forecasted complete has not occurred but.
• The present ~$72.7 million in tracked World Cup quantity is a seed, not a trajectory. Early event outcomes will likely be the first actual learn on whether or not the base case holds.
• The $203–336 million projection additionally assumes the contract retains constructing by the group stage and knockouts the manner accomplished champion markets did. This is a really probably situation, as the World Cup has a extra diffuse favourite (48 groups) and resolves extra progressively than a single-elimination bracket, which may flatten the curve.

This is the first World Cup with US prediction-market entry — and there's no precedent for what that does to quantity. 

It will arrive at the similar first-open inflection the Super Bowl simply handed by and every main occasion since has drawn considerably extra quantity and curiosity. This form of surge is the strongest argument for the high finish of our vary — and a motive the true ceiling could sit above it and ought to be learn as a benchmark relatively than an higher certain or ceiling. 

Methodology: 

We reviewed roughly $2.44 billion in trade-tape quantity throughout roughly 7,550 market rows was reviewed, drawing on about 9.8 million particular person uncooked commerce information paged from the API (March Madness 6.98M, NBA 1.73M, Champions League 1.07M; World Cup quantity is reported at the every day sequence stage, with no per-trade depend). 

The submit Forecast: World Cup Prediction Market Volume Could Hit $2.5 Billion in the US appeared first on DeFi Rate.