Category · Start Here

    Start Here prediction markets.

    New to prediction markets? Start here: what event contracts are, how prices work as probabilities, how markets resolve, and how they differ from sportsbooks.

    How to Open Your First Prediction Market Account: A Beginner's Guide for 2026
    Beginner's Guide · 13 min read

    How to Open Your First Prediction Market Account: A Beginner's Guide for 2026

    You've heard about prediction markets. You want to try them. You don't know where to start. This is the complete walk-through, from picking your first platform to placing your first trade, written for readers who have never touched an event contract.

    Updated Sep 18, 2026
    Prediction Markets vs Sports Betting Markets: What's the Difference?
    Explainer · 9 min read

    Prediction Markets vs Sports Betting Markets: What's the Difference?

    Prediction markets and sports betting markets look similar from a distance. Both let you take a position on an outcome. But they are different products, under different regulators, with different economics. Here's the full breakdown.

    Updated Sep 18, 2026
    How event contracts work
    Basics · 10 min read

    How event contracts work

    Price equals probability. A contract at 40¢ means the market thinks there's a 40% chance. Here's the full mechanic, with a Lakers walk-through.

    Updated Sep 17, 2026
    Reading probability prices: a 5-minute primer
    Basics · 5 min read

    Reading probability prices: a 5-minute primer

    Why 62¢ is the same as +61 in American odds, and why you'll never want to go back.

    Updated Sep 17, 2026
    Kalshi and Polymarket Are Launching Perpetual Futures. Here's What That Actually Means
    Explainer · 9 min read

    Kalshi and Polymarket Are Launching Perpetual Futures. Here's What That Actually Means

    On April 22, 2026, Marketplace reported both major US prediction markets are preparing to offer perpetual futures: a leveraged, no-expiration derivative that until now has only existed offshore. Here's what they are, why now, and whether you should care.

    Updated Sep 18, 2026
    What Are Event Contracts? A Plain-English Guide
    Guides · 8 min read

    What Are Event Contracts? A Plain-English Guide

    Event contracts are CFTC-regulated financial instruments that pay $1 if a real-world event happens and $0 if it doesn't. They're not bets, not stocks, and not options, and they're legal in California. Here's how they actually work.

    Updated Sep 23, 2026

    Start Here: common questions

    What is a prediction market?
    A prediction market is an exchange where you buy and sell event contracts that pay $1 if an outcome happens and $0 if it does not. The price, from 1 to 99 cents, reads as the market's probability of that outcome.
    Are prediction markets legal in California?
    Yes. CFTC-regulated platforms such as Kalshi and Polymarket US are available to California residents aged 21+, because event contracts are regulated under federal commodities law.
    How much money do I need to start?
    Most platforms have no or very low minimum deposits, and a single contract costs less than $1, so you can learn with a few dollars before sizing up.
    How is a prediction market different from a sportsbook?
    You trade against other people on an exchange instead of against a house, you can sell your position before the event ends, and prices move with supply and demand rather than set odds.