Yes, you can bet on sports on Polymarket, and for a lot of bettors it’s the better place to do it. Polymarket lists markets on more than 450 sports leagues and competitions, from the NFL and NBA to the Premier League, IPL cricket and table tennis, and the biggest games carry hundreds of markets each.
It works differently from a sportsbook, though. There’s no bookmaker setting the odds or taking the other side of your bet. Polymarket is an exchange: you’re betting against other users, and that changes how prices, costs, cashing out and limits work.
I’ve traded sports on Polymarket for years, after being limited by 40 to 50 bookmakers. This guide covers how it works and where it beats a sportsbook, plus the places it doesn’t.
How a Bet Works on Polymarket
Every outcome trades as shares priced between $0.00 and $1.00. A winning share pays $1.00, and a losing share pays nothing.
The price is the probability the market gives the outcome, and it converts directly to odds:
| Polymarket price | Implied probability | Decimal odds | American odds |
|---|---|---|---|
| $0.20 | 20% | 5.00 | +400 |
| $0.40 | 40% | 2.50 | +150 |
| $0.50 | 50% | 2.00 | +100 / -100 |
| $0.65 | 65% | 1.54 | -186 |
| $0.80 | 80% | 1.25 | -400 |
So buying 100 shares of the Celtics at $0.40 costs $40 (plus any fee) and pays $100 if they win. That’s the same bet as $40 at decimal odds of 2.50.
You don’t have to do the conversion yourself. Polymarket can show prices as decimal, fractional, American and five other formats. Here’s how to change the odds format, or use our odds converter.
What You Can Bet On
Coverage is wide. The main sports and leagues include:
- US sports: NFL, NBA, MLB, NHL, WNBA, MLS, college football and college basketball
- Football (soccer): Premier League, Champions League, Europa League, La Liga, Serie A, Bundesliga, Ligue 1 and dozens of other leagues worldwide
- Tennis: ATP and WTA tours, including Wimbledon
- Cricket: IPL, Big Bash, The Hundred, Test and one-day internationals, and many domestic T20 leagues
- Motorsport and combat sports: F1, MotoGP, NASCAR, UFC and boxing
- And more: golf, rugby league and union, AFL, darts, table tennis, volleyball, handball and esports
Market depth per game is the surprise. A typical NBA game carries around 300 markets: moneyline, point spreads, totals, first-half lines, player points, rebounds, assists, threes, steals and blocks, plus race-to-10/20/30 points, odd/even and overtime. Premier League matches add corners markets and player props such as anytime goalscorer, shots, shots on target and goalkeeper saves.
Season-long futures run alongside: league and tournament winners, conference champions, MVP and Rookie of the Year awards, the F1 Drivers’ Championship and the Ballon d’Or. Live prices for the biggest ones are on our futures odds pages.
Trading Out Instead of Cashing Out
At a sportsbook, getting out of a bet early means taking the cash-out offer. In my experience bookmakers take about 10% to 20% off the fair price on cash-out, and more on long shots.
On Polymarket there’s no cash-out button because you don’t need one. You own shares, and you can sell them to another trader at the current market price at any time before the result, including mid-game. If you bought at $0.40 and the price is now $0.70, you sell and take the $0.30 per share profit. No bookmaker margin comes off it. How to sell a position walks through it.
That makes Polymarket a trading venue as much as a betting one. You can back a team pre-game, sell after an early goal, buy back in at half-time, or lock in profit by hedging the other side.
In-Play Liquidity
The thing that surprised me most when I started trading sports on Polymarket was the liquidity. On an NBA game or a big Champions League or Premier League match, there are typically tens of thousands of dollars available at the best price, and sometimes up to millions at a slightly worse price. That slightly worse price is often still better than any bookmaker is offering.
It holds up in-play. Mid-match on an EPL or NBA game you can still get tens of thousands on at a fair price. Football, basketball and baseball are incredibly liquid in-play, and you can trade in and out as the game moves. Minor sports and lower leagues are thinner.
No Limits for Winners
Sportsbooks limit winning accounts. Polymarket doesn’t, because it isn’t the house: every trade is between two users, and Polymarket earns its fee whichever side wins. It has no reason to care whether you win, and it actually rewards volume with lower fees through taker tiers.
Your only limit is the order book. I’ve written up why bookmakers ban winners and why Polymarket can’t in full.
What It Costs
A sportsbook hides its margin in the odds. That’s the vig, usually about 4% to 10%. Polymarket shows its price without a margin and charges a separate taker fee: shares × feeRate × price × (1 − price).
| Market | Fee rate | Max fee per 100 shares (at $0.50) | Equivalent margin at $0.50 |
|---|---|---|---|
| Most sports and esports | 0.05 | $1.25 | about 2.5% |
| NFL and college football games | 0.03 | $0.75 | about 1.5% |
| Any market, limit order that rests on the book (maker) | 0 | $0, plus a rebate | 0% |
The fee is largest at a 50¢ price and shrinks toward zero at the extremes. A $0.90 favorite costs $0.45 per 100 shares at the 0.05 rate. Some season futures created before July 2026 still use an older 0.03 rate. Add the bid-ask spread to the fee, which is small on liquid markets. The fee calculator prices any trade exactly, and Polymarket fees covers every category.
Where Liquidity Is Thin
Liquidity is the one thing to watch:
- Player props and niche sports can have little depth, so a large order moves the price against you.
- Far from the event, books are thinner. Liquidity builds as kick-off or tip-off approaches, and shortly before a game you’ll get a great price.
- Market orders take whatever is on offer. In a thin book that can mean a poor average price. A limit order lets you name your price, and if it rests on the book you pay no fee.
How to trade on Polymarket explains limit and market orders.
Parlays (Combos)
Polymarket’s parlays are called Combos, and they’re available on sports and esports. They’re pretty good, with one difference from a sportsbook: a market maker has to quote your exact combination. Popular combinations get quotes. Unusual ones sometimes don’t. A sportsbook always accepts a parlay, at least until it limits you.
Where a Sportsbook Is Still Better
- Parlays on unusual combinations, for the reason above.
- Very obscure markets nobody is trading on Polymarket.
- Sign-up bonuses and boosts. Polymarket doesn’t run sportsbook-style promotions.
For almost everything else, including major leagues, big games, in-play and anyone betting serious size, Polymarket’s prices are the best in the market in my experience.
How to Place Your First Sports Bet
- Create an account and deposit. Deposits convert to pUSD, Polymarket’s dollar balance.
- Find your game under Sports, or search for the team.
- Pick the outcome (moneyline, spread, total or prop) and click the price.
- Choose your order type. A market order fills now at the best available prices. A limit order sets your price and waits. Orders have a $1 minimum, and limit orders need at least 5 shares.
- Hold or trade out. Winning shares pay $1 each when the market resolves, or you can sell any time before.
Polymarket’s availability depends on where you live, so check your country first.
Getting Started
The easiest test is to pick the next big game you’d normally bet on and compare Polymarket’s price with your sportsbook’s. Create a free Polymarket account here.
Related Guides
- Banned for Winning: why sportsbooks limit winners and Polymarket doesn’t
- Prediction Markets vs Sports Betting: the structural and legal differences
- How to Bet Esports on Polymarket
- Polymarket Combos