H2 Gambling Capital projects first NFL betting handle decline as prediction markets gain ground
H2 Gambling Capital projects U.S. sportsbooks will draw $31.4 billion in NFL handle this season, marking the first expected decline as regulated prediction market platforms capture volume previously held by traditional sportsbooks. H2GC estimates that sports event contracts across U.S.-facing prediction market venues carried handle equivalent to roughly $7 billion in 2025, compared with $184 billion in traditional sports betting. The report frames prediction markets as riding World Cup momentum into the NFL season.
The $31.4 billion projection forces sportsbook operators to price prediction markets as a permanent demand drain, not a seasonal distraction. Kalshi, Polymarket, and Novig now compete directly for the same NFL bettor wallet. Novig's $125 million first-week volume already proved sports-native users will migrate. Market makers must now split inventory across three regulated sports venues or concentrate where flow is richest.
The platforms' summer race for in-play trading and tighter spreads becomes a September survival test. For traditional sportsbooks, the handle drop threatens promotional budgets and margin compression they cannot absorb indefinitely. The first Sunday's order-book quality will reveal which venue spent its summer wisely.
The anticipated handle decline arrives as predicted market venues already face their first monthly volume drop in a year, with Kalshi and Polymarket down 15% in August after July's World Cup-inflated peak.