Polymarket sports betting: how it works for sportsbook bettors
By WhaleSays Editorial · Updated · 10 min read
Polymarket sports betting means trading shares in a game's result with other people on an exchange, not placing a bet with a bookmaker. There is no house setting the odds: each outcome has a price in cents that is also its chance, so 62¢ is a 62% chance, −163 in American odds and 1.61 in decimal odds, and a winning share pays $1. Polymarket earns from a fee on takers instead of a margin hidden in the odds, and polymarket.com is closed to new trades in the United States.
WhaleSays is independent and not affiliated with Polymarket. Our Polymarket sign-up links are affiliate links: we may receive a share of the trading fees you pay, and you pay nothing extra. See the affiliate disclosure. This page is information, not financial or legal advice.
Next games across sports, in cents and in odds
These are the busiest upcoming games on Polymarket right now, a few from each sport we cover. Every line shows the Polymarket price in cents, then the same price as American odds and decimal odds, so you can set it next to what your sportsbook offers.
76ers vs. Pistons
Wed 4 Nov, 7:00 PM ET- PistonsPrice 53.5¢American odds −115Decimal odds 1.87
- 76ersPrice 46.5¢American odds +115Decimal odds 2.15
Traded so far: $28K
Trade this game on Polymarket (affiliate link)Hawks vs. Wizards
Wed 4 Nov, 7:00 PM ET- HawksPrice 54.5¢American odds −120Decimal odds 1.83
- WizardsPrice 45.5¢American odds +120Decimal odds 2.20
Traded so far: $12K
Trade this game on Polymarket (affiliate link)Pacers vs. Grizzlies
Wed 4 Nov, 8:00 PM ET- GrizzliesPrice 71.5¢American odds −251Decimal odds 1.40
- PacersPrice 28.5¢American odds +251Decimal odds 3.51
Traded so far: $11K
Trade this game on Polymarket (affiliate link)
Jaguars vs. Ravens
Thu 5 Nov, 8:15 PM ET- JaguarsPrice 81.5¢American odds −441Decimal odds 1.23
- RavensPrice 18.5¢American odds +441Decimal odds 5.41
Traded so far: $80K
Trade this game on Polymarket (affiliate link)Bengals vs. Falcons
Sun 8 Nov, 9:30 AM ET- BengalsPrice 59.5¢American odds −147Decimal odds 1.68
- FalconsPrice 40.5¢American odds +147Decimal odds 2.47
Traded so far: $130K
Trade this game on Polymarket (affiliate link)
UEFA Champions League
AEK vs. Real Madrid CF
Wed 4 Nov, 12:45 PM ET- AEKPrice 7.5¢American odds +1233Decimal odds 13.33
- DrawPrice 12.5¢American odds +700Decimal odds 8.00
- Real Madrid CFPrice 79.5¢American odds −388Decimal odds 1.26
Traded so far: $116K. The three prices add up to 100¢.
Trade this game on Polymarket (affiliate link)UEFA Champions League
Fenerbahçe SK vs. Liverpool FC
Wed 4 Nov, 12:45 PM ET- Fenerbahçe SKPrice 15.5¢American odds +545Decimal odds 6.45
- DrawPrice 19.5¢American odds +413Decimal odds 5.13
- Liverpool FCPrice 65.5¢American odds −190Decimal odds 1.53
Traded so far: $23K. The three prices add up to 100¢.
Trade this game on Polymarket (affiliate link)UEFA Champions League
FC Porto vs. SSC Napoli
Wed 4 Nov, 3:00 PM ET- FC PortoPrice 49.5¢American odds +102Decimal odds 2.02
- DrawPrice 25.5¢American odds +292Decimal odds 3.92
- SSC NapoliPrice 24.5¢American odds +308Decimal odds 4.08
Traded so far: $38K. The three prices add up to 100¢.
Trade this game on Polymarket (affiliate link)
UFC Fight Night · Welterweight, Main Card
Wellington Turman vs. Seokhyeon Ko
Sat 7 Nov, 5:00 PM ET- Seokhyeon KoPrice 84.5¢American odds −545Decimal odds 1.18
- Wellington TurmanPrice 15.5¢American odds +545Decimal odds 6.45
Traded so far: $5,217
Trade this fight on Polymarket (affiliate link)UFC Fight Night · Heavyweight, Main Card
Johnny Walker vs. Waldo Cortes Acosta
Sat 7 Nov, 5:00 PM ET- Waldo Cortes AcostaPrice 65.5¢American odds −190Decimal odds 1.53
- Johnny WalkerPrice 34.5¢American odds +190Decimal odds 2.90
Traded so far: $4,316
Trade this fight on Polymarket (affiliate link)
Prudential Hong Kong Tennis Open
Leylah Fernandez vs Sofia Kenin
Wed 4 Nov, 1:00 AM ET- Leylah FernandezPrice 73¢American odds −270Decimal odds 1.37
- Sofia KeninPrice 27¢American odds +270Decimal odds 3.70
Traded so far: $72K
Trade this match on Polymarket (affiliate link)Prudential Hong Kong Tennis Open
Antonia Ruzic vs Alina Charaeva
Wed 4 Nov, 1:00 AM ET- Antonia RuzicPrice 52.5¢American odds −111Decimal odds 1.90
- Alina CharaevaPrice 47.5¢American odds +111Decimal odds 2.11
Traded so far: $24K
Trade this match on Polymarket (affiliate link)
Prices read at 21:23 UTC, 3 Nov 2026. They move all the time, so open the market for the live number.
A share price is not a promise. If you buy and the outcome does not happen, you lose what you paid, plus any fee. Only trade money you can afford to lose; see trading responsibly. These tools do maths on prices you enter. They are not financial advice and not a prediction.
Want to compare a price with your sportsbook?
Opening a Polymarket account takes a few minutes and you can start with a small deposit. WhaleSays is independent; signing up through our link costs you nothing extra.
Exchange or bookmaker: what changes for a bettor
A sportsbook is the other side of your bet. It quotes odds, takes your stake and pays out if you win, and it sets prices so that over many bets it earns a margin whichever side wins. On Polymarket, in the words of its own docs, “Prices aren't set by Polymarket”: users post buy and sell orders, and a trade happens when two of them match. Our Polymarket vs sportsbooks guide sources every row below.
| Topic | Polymarket | Typical sportsbook |
|---|---|---|
| Who you trade with | Other users, through an order book | The bookmaker |
| How the price is set | Supply and demand | The bookmaker sets the odds |
| How the operator earns | Taker fees; none for limit orders that wait to be filled | A margin built into the odds (vig) |
| Odds format | Price in cents, $0 to $1 per share | American, decimal or fractional |
| Exit before the end | Sell your shares at any time | Depends on the book; some offer cash-out |
| Size limits | None in the order book, but big orders move the price | Set by the operator and can be cut per account |
| Availability | Many countries blocked or close-only | Licensed market by market |
The same bet, two prices: margin against fee
Take an even game with a −110 line on both sides. Each side implies 52.38%, which adds to 104.76%. The extra 4.76% is the bookmaker's margin, and if it takes equal money on both sides it keeps about 4.55% of the stakes. Strip it out and each side is a fair 50%. On Polymarket the same game would sit at 50¢ a side, and what you pay instead of a margin is a fee when you buy at the price on offer: shares × 0.05 × price × (1 − price) for sports, as in our Polymarket fees explained. A limit order that someone else fills pays none.
| How you bet | You put in | You get back if right | Profit if right | Break-even win rate |
|---|---|---|---|---|
| Sportsbook at −110 | $100 | $190.91 | $90.91 | 52.38% |
| Polymarket, buy now at 50¢ | $102.50 | $200 | $97.50 | 51.25% |
| Polymarket, limit order at 50¢ | $100 | $200 | $100 | 50% |
That is the tidy version, with an invented 50¢ market that has no gap between the buy and sell price. In real markets the price you pay includes that gap, which is wider in thin games, so the true comparison is your bookmaker's line with its margin removed against Polymarket's price plus the gap plus the fee. The fee also depends on the price. It is a share of your trade equal to the rate × (1 − price), so it is largest on long shots:
| Price | American odds | Decimal odds | Fee on $100 | Fee as share of trade | Break-even win rate |
|---|---|---|---|---|---|
| 20¢ | +400 | 5.00 | $4.00 | 4% | 20.8% |
| 35¢ | +186 | 2.86 | $3.25 | 3.25% | 36.14% |
| 50¢ | +100 | 2.00 | $2.50 | 2.5% | 51.25% |
| 65¢ | −186 | 1.54 | $1.75 | 1.75% | 66.14% |
| 80¢ | −400 | 1.25 | $1.00 | 1% | 80.8% |
Rates differ by market: the sports rate here is 0.05, and the market data for NFL games listed 0.03 when we read it on 3 November 2026, which the Polymarket NFL page explains. The Polymarket odds converter takes any bookmaker line, removes the margin and compares it with a Polymarket price, and the payout calculator shows what any amount returns. Neither side is cheaper everywhere, so measure the exact bet.
Bet types translated: moneyline, spread, totals, props, futures, in-play, cash out
Every sportsbook bet has a Polymarket counterpart, with one habit to unlearn: each line is its own market, with its own price and its own depth. The last column is read from Polymarket's market data and shows where that kind of market is listed for upcoming games right now.
| Topic | On Polymarket | Listed today for |
|---|---|---|
| Moneyline | One market whose question is the game itself, with a share for each team. Soccer splits it in three: each team to win and the draw, each a Yes/No market. | NBA, NFL, soccer, UFC and tennis, at the last refresh. |
| Point spread | One market per line, such as “Spread: Pistons (−1.5)”. The named team wins the market if it wins by more than the handicap, and the other side wins otherwise. | NBA, NFL, soccer and tennis, at the last refresh. |
| Totals (over/under) | One market per line, Over against Under, such as “O/U 219.5”. Lines ending in .5 cannot push. | NBA, NFL, soccer, UFC and tennis, at the last refresh. |
| Player props | A market per player and statistic, such as points, rebounds, assists, passing yards or an anytime touchdown. Read each market’s rules for a player who does not play: the NFL anytime-touchdown rules we read say it resolves No. | NBA and NFL, at the last refresh. |
| Futures | A Yes/No share per team or player for a season-long question: champion, conference winner, MVP, a division’s champion. Our hub pages follow the biggest ones. | NBA, NFL, soccer, UFC and tennis, when we checked on 3 November 2026. |
| Live or in-play | Markets stay open while the game is played. Polymarket’s docs say resting limit orders on sports markets are cancelled when the game begins, and that orders that fill at once can wait out a short delay on sports markets. | Sports markets in general; see the docs on markets and the order lifecycle. |
| Cash out | Sell your shares at the current price. Selling at once is a taker trade, so the fee applies; a limit order to sell pays none but may not fill. | Every market with an order book. |
Sources for the in-play row: markets and events and order lifecycle. Rules for edge cases such as overtime, ties and retirements differ by sport and by market, so each sport page quotes the rules text of a live market: see NBA, UFC and tennis.
Limits: what we can source
People who win at sportsbooks often meet limits. These are the facts we can source, from our sportsbooks guide:
- Polymarket. Its docs say the order book has “no trading size limits” and matches buyers and sellers of any amount (see prices and order book). The catch is liquidity: a large order can move the price, so look at the depth first.
- Sportsbooks. They set their own limits and can restrict individual accounts. Data from the UK Gambling Commission, reported by iGamingBusiness, showed 643,779 of 14,923,840 active accounts (4.31%) restricted at operators in Great Britain in 2024, and cutting the maximum stake was the most common measure. That is a UK data point, not a worldwide rate.
For a sense of who does well on the exchange side, Polymarket's sports leaderboard ranks the top sports trader of the last 30 days, BreakTheBank, at $6.7M of profit. A Wall Street Journal analysis from May 2026 found that 67% of Polymarket's profits went to 0.1% of accounts, so a leaderboard shows survivors and most traders earn far less. See the Polymarket sports leaderboard for the ranking, and what to do when a sportsbook limits your account for the options, which include exchanges other than Polymarket.
Funding and availability in short
Polymarket trades in USDC, a crypto token pegged to the US dollar, so one USDC is worth about $1. You can fund an account with USDC or other crypto, or buy through an intermediary such as MoonPay with a card. Polymarket's fee page says it does not charge to deposit or withdraw USDC, although intermediaries may charge. Our first-trade guide walks through sign-up and a first small deposit, and nothing here replaces reading Polymarket's own terms.
Where you can do it depends on your country. polymarket.com is closed to new trades in the United States, where a separate CFTC-regulated app called Polymarket US exists with its own terms and fees. The availability page lists the countries, and is Polymarket legal covers the legal side. WhaleSays does not give legal advice.
Start small and read the rules first
A $20 trade is enough to learn how the order screen, the fee and the sell button work. Read the market rules before you buy, and only trade money you can afford to lose.
Polymarket odds by sport
Each sport page has live games, the rules text of a real market, a worked fee example and its own FAQ.
- Polymarket NBAMoneylines, spreads, totals and player props for every game, plus the championship race.
- Polymarket NFLThe weekly slate with spreads, totals, quarters and player props, and the Super Bowl race.
- Polymarket SoccerPremier League, Champions League and more, with the draw priced as its own market.
- Polymarket UFCFight winners, method of victory, rounds and go-the-distance, plus division champions.
- Polymarket TennisATP and WTA matches with set winners, handicaps and totals, plus the retirement rule.
Futures and tools
- Title races: NBA championship odds, Super Bowl odds, Premier League winner odds, Champions League winner odds and UFC champions 2026 odds.
- Polymarket sports leaderboard for the top sports traders by day, week, month and all time.
- Odds converter, payout calculator and fee calculator.
Frequently asked questions
- Is Polymarket sports betting the same as betting with a sportsbook?
- Not quite. On Polymarket you buy shares in a result from other users, and the price is set by their buy and sell orders, not by a house. A winning share pays $1. You can sell before the game ends, and the platform earns a fee from takers instead of a margin built into the odds. Our Polymarket vs sportsbooks guide compares the two in detail.
- How do I bet on sports on Polymarket?
- You trade shares. Check that your country is allowed, open an account, add money in USDC, pick a game, read its rules, and buy the team you back at the price shown. A winning share pays $1 and a losing share pays $0. You can sell before the game ends. Our first-trade guide walks through each step.
- What are Polymarket odds in American or decimal terms?
- Polymarket shows a price in cents, which is also the market's chance. Any price converts: 62¢ is −163 in American odds and 1.61 in decimal odds, and 40¢ is +150 and 2.50. Our odds converter turns any price into American, decimal and fractional odds.
- Is Polymarket cheaper than a sportsbook?
- Sometimes, sometimes not. A sportsbook builds a margin into its odds: a −110 / −110 line has a margin of about 4.55%. Polymarket charges takers shares × fee rate × price × (1 − price), which is 2.5% of the trade at 50¢ with the sports rate of 0.05, and nothing for limit orders that wait to be filled. Compare the all-in price of the exact bet on both.
- Will Polymarket cut my stakes if I keep winning on sports?
- Polymarket's docs say its order book has no trading size limits and matches buyers and sellers of any amount, while sportsbooks set their own limits and can restrict accounts. On a sports market the practical limit is depth: a thin game may only have traded a few thousand dollars, and a large order moves the price against you.
- Is Polymarket sports betting legal in the US?
- polymarket.com is closed to new trades in the United States. Polymarket runs a separate CFTC-regulated app, Polymarket US, which started with sports markets and has its own terms and fees. Rules also differ by state and country, so check our availability and legal pages and read your local rules. WhaleSays does not give legal advice.
- Can I cash out a Polymarket sports position?
- Yes. You can sell your shares at any time before the game ends at the price the market offers, which is the Polymarket version of a cash-out. Selling at once is a taker trade, so the fee applies. A limit order to sell pays no fee but may not fill, and the price may be lower or higher than what you paid.
- Which sports does Polymarket cover?
- Polymarket lists NBA, NFL, soccer, UFC and tennis games and season-long markets, which this site has pages for, and other sports such as NHL games when they are in season. Coverage and depth vary by sport and by game, so check how much a market has traded before you rely on its price.
Prices on this page come from Polymarket's public data and are read about once a minute. WhaleSays is independent and earns affiliate commission, and nothing here is a prediction or a promise that you will win.