Category · Platform Guide
Platform Guide prediction markets.
Reviews and deep-dives on every federally-regulated event-contract platforms US traders can use.
What Is Rebet? A US Trader's 2026 Guide
Rebet is a social-first prediction market built for traders who want to share positions, discuss markets, and trade alongside friends. Here's what it does well, who it's for, and whether a US trader should open an account.
Updated Aug 7, 2026
What Is Chalkboard? A US Trader's 2026 Guide
Chalkboard is a prediction market built almost entirely around player props — LeBron's points, Steph's threes, Mahomes' passing yards. Here's what it does, who it's for, and whether a US trader should add it to their account rotation.
Updated Aug 5, 2026
What Is Sleeper? A US Trader's 2026 Guide
Sleeper started as a fantasy platform and built federally-regulated event contracts on top of an existing sports community. Here's what makes it different, who it's for, and whether a US trader should add an account.
Updated Aug 6, 2026
What Is Novig? A US Trader's 2026 Guide
Novig is a peer-to-peer sports exchange built for traders who've been limited or banned by sportsbooks. No house, no winner limits, tight pricing set by other traders. Here's what it offers and whether a US trader should use it.
Updated Aug 7, 2026Frequently asked questions
Which platform should I choose?
- Kalshi for breadth and liquidity, Polymarket for culture and crypto-native markets, Chalkboard for player props, Novig for peer-to-peer sports pricing, Sleeper and Rebet for social trading.
Can I use more than one venue?
- Yes, and most active traders do. Prices for the same outcome can differ between venues, which is where cross-venue opportunities appear.
What should I compare first?
- State eligibility, funding methods, fee structure, and the depth of the specific markets you plan to trade — not the signup bonus.
Sources
Every figure on this page is checked against primary sources — regulator filings, exchange documentation and official results. Prices and rules change; verify with the operator before trading.
- 1.Kalshi Help Center — fees, funding and account rules — Kalshi
- 2.Polymarket documentation — markets, fees and resolution — Polymarket
- 3.Designated Contract Markets (DCMs) — U.S. Commodity Futures Trading Commission
- 4.The Commodity Exchange Act & regulations — U.S. Commodity Futures Trading Commission