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Articles / prediction-markets / Japan’s Prediction Markets Are Following the Pachinko Playbook

Japan’s Prediction Markets Are Following the Pachinko Playbook

Jun 29, 2026 · Source: financemagnates.com · Topic:  prediction-markets
Monthly Users
1M
Miraima app has attracted one million monthly users within seven months of launch.
Pachinko Industry Value
$100B
The legal workaround for prediction markets is similar to that of Japan's $100 billion pachinko industry.
Regulatory Approval Target
2030
Polymarket aims for regulatory approval in Japan by 2030.

§ 01 Executive Snapshot

  • What: Japan's prediction markets are growing through domestic startups using a legal workaround similar to pachinko.
  • Who: Domestic startups like Miraima; international platforms such as Polymarket and Kalshi.
  • Why it matters: The emergence of these platforms indicates a strong demand for event-based trading in Japan, despite strict gambling laws.

§ 02 Key Developments

  • Miraima, a prediction market app, has attracted one million monthly users within just seven months of launch.
  • Users on Miraima wager points on sports, stocks, and political events, redeeming winnings through gift cards and loyalty programs, primarily with PayPay and Rakuten.
  • The model mirrors Japan's $100 billion pachinko industry by allowing users to engage without directly betting cash.

§ 03 Strategic Context

  • Japan's gambling laws prevent global platforms from operating, leading to a unique domestic market evolution that leverages cultural practices like point-collecting.
  • The success of Miraima suggests a significant market opportunity for prediction markets in Japan, indicating a potential shift in regulatory perspectives.

§ 04 Strategic Implications

  • Immediate market consequence: The rise of point-based prediction markets shows that there is demand for event-based trading under existing laws.
  • Long-term operational implication: The future of these platforms may influence regulatory changes regarding gambling laws in Japan.

§ 05 Risks & Constraints

  • Potential risk of regulatory changes that could impact the operational viability of point-based prediction markets in Japan.
  • Competition from international platforms like Polymarket and Kalshi, which may seek to enter the market once regulatory barriers are lowered.

§ 06 Watchlist / Forward Signals

  • Monitor Polymarket's target for regulatory approval in Japan by 2030, coinciding with the opening of MGM Osaka.
  • Future developments in Japan's gambling laws and budget allocations to the Casino Management Commission may signal the regulatory environment's evolution for prediction markets.
§ 07

Frequently Asked Questions

What are Japan's prediction markets?

Japan's prediction markets are platforms that allow users to wager points on various events, such as sports and politics, using a legal workaround similar to pachinko.

Who are the key players in Japan's prediction market scene?

Key players include domestic startups like Miraima and international platforms such as Polymarket and Kalshi.

Why are prediction markets significant in Japan?

They indicate a strong demand for event-based trading despite strict gambling laws, suggesting a potential shift in regulatory perspectives.

How does Miraima operate within Japan's gambling laws?

Miraima allows users to engage in prediction markets by wagering points instead of cash, redeeming winnings through gift cards and loyalty programs.

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