A sports market on Polymarket is an order book of live orders from traders. The price of “Team A wins” is what traders are willing to pay or accept for a share that pays $1 if Team A wins. During a match that price moves with the game: a goal, a red card or a break of serve, and a second later the book looks different.
Prop Hub runs sports trading on the same Polymarket prices. Here is how it works and what it means for your account.
What you can trade during a match
Sports markets are grouped by game. A game usually has several markets:
- match result — first or second team to win, and in football also the draw (three separate Yes/No markets);
- spread — a win after a handicap on the score;
- total — over or under a set number of goals, points or sets.
A game’s markets are available if it starts within the next 2 days. Trading does not stop at kick-off: as long as Polymarket accepts orders on a market, you can buy an outcome and sell a position you already hold. A market closes when Polymarket stops taking orders, or when the book runs out of offers, in which case the outcome shows “–” instead of a price.
Live scores come from Polymarket’s official sports feed, so you see what is happening on the field next to the price.
Why the price jumps after a goal
Live prices are held up by market makers, who keep buy and sell orders in the book at all times. When something important happens, they pull their old orders and post new ones within a fraction of a second. If the favourite concedes in the 70th minute, its price can drop from 0.72 to 0.45 almost instantly.
Two things follow for a trader.
First, the price on the chart is history. A buy fills against the current book: the cheapest sell order first, then the next one. A large order gets an average entry price worse than the best quote. The mechanics are covered in the article on the order book and slippage.
Second, right after an event the book can be nearly empty. An order that does not fit into the available offers in full is not executed; there are no partial fills. It is annoying, but fair: you will not get a position at a price that no longer exists.
The execution delay and why it exists
Most Polymarket sports markets have an execution delay, usually about one second. The point is simple: someone watching from the stadium or on a fast stream should not be able to buy at the old price before everyone else has seen the goal.
Prop Hub copies this behaviour. When you press “Buy” on a sports market with a delay, the system waits for that time, fetches the market and the order book again, and only then executes your order against the fresh book. Selling also waits for the delay. So sometimes an order fills slightly worse than the price on the button, and sometimes it does not fill at all because the market closed or the outcome became almost certain during that second.
This is not a platform glitch. Polymarket itself works this way, and we keep conditions as close to the real market as possible.
Reading a live price
A price of 0.60 means the market puts the outcome at roughly 60%. Buy a share at 0.60 and it pays $1 if the outcome happens, which is +$0.40 per share before fees, or $0 if it does not. More on this in why prices are probabilities.
A few practical observations.
Time works for the team in front. At 1–0 in football the leader’s price rises as the minutes run down, even if nothing happens on the pitch. Buying the leader ten minutes from the end is expensive and the return per share is small.
A price near 0.95 earns almost nothing. To make $50 on shares bought at 0.95 you need to put in about $950, which quickly runs into the per-outcome limit. On a funded account, profit from positions opened above 90¢ or below 10¢ also does not count towards the amount you can withdraw.
The three markets of a football match are linked. Home win, draw and away win add up to about 1. If you hold positions in two of them at once, check that you are not simply hedging yourself.
Account limits on a busy match night
The most common way to close an account on sports is several positions in different games on the same evening that all lose together. The rules that matter here:
- per-outcome limit — all your buys in one outcome together cannot exceed 5% of the starting balance;
- daily drawdown — equity cannot fall more than 10% below its level at the start of the UTC day;
- drawdown protection — before every buy the system checks the worst case: this position and all open ones lose. If equity in that scenario breaks a limit, the order is rejected.
Keep UTC in mind. Late games in the Americas and NBA nights for European traders fall on a different trading day than your local clock suggests. The article on daily and total drawdown walks through the limits with numbers.
Before you open a live position
A short checklist helps.
- Why do you think the market is wrong? “They are the stronger team” is not a reason; that is already in the price.
- How much can you lose if the outcome fails? The amount you buy is your maximum loss.
- What happens if the book is empty when you want to sell? Sometimes the only exit is resolution.
- How much do you already have open tonight? The “how much more you can buy” figure in the panel accounts for every limit.
Start small on the free welcome account: the rules are the same and mistakes cost nothing. Available markets and Market filters are described in the help center.