Whereas world platforms akin to Polymarket and Kalshi stay blocked by Japan’s strict playing legal guidelines, prediction markets are quietly taking root by means of home startups. Their mannequin borrows the identical workaround that has allowed Japan’s $100 billion pachinko trade to function for many years.
World prediction market platforms can not legally function in Japan, however that has not stopped prediction markets from rising. Home startups are adapting the identical authorized workaround that has allowed Japan’s pachinko trade to function for many years.
Miraima app is an ideal instance of the development. Being simply seven months previous the app has already attracted a million month-to-month customers. The platform lets customers wager on sports activities, shares, and political occasions utilizing factors quite than money. Winnings are redeemed individually by means of reward playing cards and retail reward programmes, primarily PayPay and Rakuten.
The Pachinko Mannequin Goes Digital
The construction is acquainted to anybody who is aware of Japan’s pachinko trade. Slightly than paying money straight, pachinko parlours award bodily tokens which might be exchanged for cash by means of separate companies.
Prediction market startups are making use of the identical precept digitally: customers wager factors contained in the platform, whereas rewards are redeemed individually by means of third-party loyalty programmes.
“Since real-money playing isn’t potential, we constructed the platform round Japan’s sturdy gaming and point-collecting tradition,” Miraima founder Keita Adachi advised Bloomberg.
Miraima describes itself as “Japan’s first” prediction market and a factors exercise app. In its personal social media bio, the corporate says customers can predict outcomes in areas akin to politics and sports activities with out betting cash, then change appropriate predictions for reward vouchers.
The product presentation factors in the identical course. Miraima shows occasion chances, market charts, trending subjects, and sports activities classes in a format that intently resembles established prediction market platforms akin to Polymarket.

Screenshot of Miraima app interface
Worldwide Platforms Take Completely different Routes
Worldwide operators have responded in another way to Japan’s regulatory surroundings. Polymarket just lately appointed former Jupiter Japan head Mike Eidlin to steer its efforts within the nation.
The corporate has publicly recognized 2030 as its goal for regulatory approval, coinciding with the opening of MGM Osaka, Japan’s first built-in on line casino resort.
Elsewhere, Polymarket and Kalshi proceed accepting customers in India regardless of the nation’s evolving regulatory panorama. Japan, against this, stays a market the place neither platform presently operates straight.
What It Means for Brokers
Japan stays closed to traditional prediction market merchandise. On the similar time, the fast progress of point-based platforms suggests demand for event-based buying and selling already exists below the present authorized framework.
The mannequin rests on a key authorized distinction: customers don’t formally wager or obtain money straight by means of the platform itself. Legal professionals following the market say that distinction stays defensible below present legislation, though future enforcement may finally take a look at that interpretation.
Japan can also be rising the 2026 price range for its On line casino Administration Fee whereas increasing digital monitoring capabilities. Whether or not point-based prediction markets proceed working below the prevailing framework, or develop into a part of a future regulated market, will rely on how regulators select to use current playing legal guidelines.





