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Polymarket US vs Rain

How Polymarket US vs Rain compare on our ratings, prediction market specs, funding, pros and cons.

Polymarket US4.1/5
VS
Rain3.0/5
Feature
Polymarket USVisit
RainVisit
Ratings
Our score4.1/53.0/5
User ratingNo reviews yetNo reviews yet
Market selection4.54.0
Liquidity4.53.0
Fees4.02.0
Resolution quality3.52.5
Ease of use4.03.5
Specs
Market typesPolitics, Sports, Crypto, WeatherNot disclosed
Settles inUSDNot disclosed
ChainsOtherArbitrum
Trading fees0% maker fee; taker fees vary by contract type5% per trade split across LP, creator, and resolver
Resolution sourceSettlement Committee and centralized exchange reportsDesignated market resolver
Available in the US YesNot disclosed
KYC required YesNot disclosed
Regulated venue YesNot disclosed
Market topicsNFL, NBA, MLB, NHL, Tennis, Soccer, US Midterms, Elections, Cryptocurrency, WeatherNot disclosed
Mobile app YesNot disclosed
Liquidity rewards Yes Yes
Company
Founded2020—
HeadquartersUnited States—
InvestorsFounders Fund, Intercontinental Exchange, 1789 CapitalNot disclosed
Strengths and weaknesses
Pros
  • CFTC Designated Contract Market status
  • Zero maker trading fees with maker rebates supported by taker fees
  • Combo functionality enables grouping 2 to 10 markets into one trade
  • The broader Polymarket entity has disclosed $2.764B in funding, including a $1B investment from Intercontinental Exchange
  • Permissionless market creation without approval steps or forms
  • Dual AMM and order-book options accommodate both niche and liquid markets
  • Token contract audited by Hacken in August 2025
  • TVL reached over $15.8M on Arbitrum in October 2026
Cons
  • Strict identity verification required, excluding anonymous trading
  • Restricted exclusively to United States residents
  • Centralized clearing model exposes users to clearinghouse counterparty risk
  • Disputed or unresolvable legs rely on discretionary pricing from an internal Settlement Committee
  • Fixed 5% trading fee is high compared to standard DeFi swaps
  • Third-party resolvers introduce potential event dispute risks
  • Operation is confined to Arbitrum with no other chains supported
  • Niche sub-pools risk thin liquidity and execution slippage
Best forUS residents trading regulated event contracts, Sports bettors building multi-leg combo positions, Political forecasters following US midterm electionsArbitrum DeFi traders, Independent prediction market creators, Developers building event platforms

Highlighted cells show the stronger value in each row. Data comes from each provider's site and public sources; check details before you sign up.