Who forms the offer
Polymarket describes its order book as participant-to-participant exchange. The British regulator separately distinguishes general betting from intermediaries, including betting exchanges. This identifies models rather than determining Polymarket’s legal status in every country. Permission for one product or jurisdiction cannot be assumed to apply to another.
Matching numbers can hide different terms
Illustrative decimal odds of 2.00 and a mathematical probability of 50% express the same inverse relationship. One question may cover regulation time, another extra time and another qualification for the next round. Until the rules match, the numbers answer different questions. Shared team or tournament names are not enough.
Compare the complete cost
Check whether costs are included in the displayed odds or listed separately. An order-book market requires attention to spreads and available offer size; every comparison needs matching quantity, capture time and final terms. Write down one equivalent operation for both sources. If a parameter is missing, leave the conclusion open rather than declaring one always cheaper.
Check restrictions separately
Being able to load a page does not establish eligible participation. Product terms, account requirements, location and promotion rules differ. OddsAtlas compares informational features rather than publishing a universal list of winning bets or suggesting ways around restrictions. If your goal is to understand an event, you can examine its question and archive without financial activity.
FAQ /
Common questions
Does a market always offer a better number?
No. That conclusion requires equivalent contracts, timing, costs and available quantity. Having an order book does not establish an advantage.
Do odds of 2 guarantee that money doubles?
No. Odds describe a conditional payout or estimate scale; the outcome, costs and rules affect the result. In the OddsAtlas converter, they are only a mathematical transformation.