Platforms
Reviews and walkthroughs of major prediction-market platforms — Polymarket, Kalshi, Manifold, and more.
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What happens when a Polymarket is disputed: the bond, the clock, and the UMA vote
A disputed Polymarket resolution triggers a bonded challenge, a 24–48h evidence window, and can end in a ~48h UMA vote that finalizes settlement.

Polymarket US vs Polymarket international: separate venues, separate access rules
Polymarket US is a CFTC-regulated designated contract market run by QCX LLC, while international trading is gated by IP-based geoblocking at order time.

How to withdraw money from Polymarket without losing it on the wrong network
Polymarket pays out in Polygon USDC, so cashing out means redeeming to USDC, sending it to a Polygon-ready off-ramp, then withdrawing fiat.

Polymarket vs Kalshi which is better for U.S. users in 2026
Kalshi is broadly available with USD rails and a wider market board, while Polymarket U.S. is invite-only and can be cheaper for takers if you can access it.