- Polymarket hired crypto executive Mike Eidlin to lead its Japan expansion efforts
- The platform currently blocks Japanese users because of strict gambling laws
- Japan’s pachinko market alone is estimated at roughly $100 billion annually
Polymarket is quietly making a long-term bet on Japan, one of the world’s largest and most culturally unique gambling markets. The prediction market platform has reportedly appointed Mike Eidlin, currently Japan head at crypto project Jupiter, to lead regional expansion efforts and begin lobbying for eventual regulatory approval.

Right now, Japanese users are completely blocked from accessing Polymarket because local gambling and derivatives laws make prediction markets legally difficult to operate. But the company appears willing to play the long game, targeting potential approval around 2030.
Japan’s Gambling Culture Is Massive
The irony is that Japan technically bans most forms of cash gambling while simultaneously supporting an enormous pachinko industry estimated around 16 trillion yen, roughly $100 billion annually.
That contradiction is exactly why Polymarket sees opportunity. Japanese consumers are already deeply familiar with outcome-based wagering systems wrapped inside carefully structured legal frameworks. From a cultural perspective, prediction markets are probably less foreign to Japan than regulators may initially admit publicly.
The challenge is not demand. It’s regulation.
Polymarket Is Taking the Slow Approach
Unlike many crypto firms that launch first and argue with regulators later, Polymarket reportedly plans to spend years working with Japanese institutions and policymakers to develop a compliant framework before attempting entry.
Sources cited by Bloomberg suggested the company wants to position prediction markets not simply as gambling products, but as financial and media infrastructure capable of generating valuable forecasting data. That framing matters because it aligns much more closely with how Japanese regulators typically approach innovation policy discussions.

And honestly, hiring someone like Mike Eidlin fits that strategy perfectly. Quiet, methodical, crypto-native, and already experienced navigating Japan’s regulatory environment.
The Timing Is Interesting
The Japan expansion push arrives while Polymarket itself faces growing pressure elsewhere. The platform recently recorded around $10.3 billion in monthly trading volume during April, down roughly 9% month-over-month.
At the same time, Polymarket’s UMA adapter exploit and broader regulatory scrutiny have kept the platform heavily in the spotlight recently. Expanding into a disciplined regulatory market like Japan signals the company still sees itself evolving into something far larger than a niche crypto betting platform.
2030 Sounds Far Away Until It Doesn’t
A four-year lobbying campaign may sound excessive in crypto terms, but major regulatory breakthroughs often take far longer than markets initially expect. Bitcoin ETFs once seemed politically impossible too.
If Polymarket eventually secures legal access to Japan’s wagering ecosystem, it would open one of the largest untapped prediction market opportunities in the world.
For now, though, the company is betting that patience, institutional alignment, and careful positioning will eventually matter more than moving fast.











