Frequently Asked Questions

A sports prediction market is an exchange where participants trade binary contracts tied to sports outcomes. Each contract resolves at $1 if the specified outcome occurs, or $0 if it does not. Prices between $0 and $1 represent the collective implied probability of the outcome. For example, a contract priced at $0.65 means traders collectively assign a 65% probability to that event.

Three key differences: (1) Fees — PolyGram charges 0% versus the 5–10% margin built into sportsbook odds. (2) Account limits — bookmakers routinely limit or ban winning accounts; PolyGram has no such restrictions. (3) Pricing — PolyGram prices are set by the market and update in real time; bookmaker odds are set by traders and updated manually with inherent delays.

PolyGram covers the major sports prediction categories: football (Champions League, Premier League, major international tournaments), tennis (Grand Slams, Masters 1000), Formula 1 (race and championship markets), boxing (major fight cards), and cricket (Test series and tournament outcomes). New markets are added ahead of major events.

PolyGram uses USDC on the Polygon network. Create an account, navigate to the Deposit page, copy your unique Polygon wallet address, and send USDC from any compatible wallet or exchange. Deposits typically arrive within 30 seconds. The minimum deposit is $1 USDC.

Markets settle as soon as the official result is confirmed by the data oracle. Match result markets typically settle within 15 minutes of the final whistle. Outright tournament markets settle after the final. Walkover, postponement, or abandonment scenarios are handled according to each market's specific resolution criteria, which are published before trading opens.

Yes. PolyGram's match result markets remain active throughout the match. Prices update continuously as goals are scored, red cards given, and match momentum shifts. You can buy, sell, and close positions at any point while the market is liquid. This is equivalent to in-play betting but with the price dynamics of a financial exchange.

For match result markets, the standard resolution is that the market resolves NO for all outcome positions if the match is officially postponed and not rescheduled within the market's resolution window. The specific resolution criteria are stated in each market's terms. Outright tournament markets typically extend their resolution date to accommodate schedule changes.

The minimum trade size on PolyGram is $1 USDC. There is no maximum trade size — unlike bookmakers, PolyGram does not cap winning trades or limit successful accounts. Large trades may have market impact on lower-liquidity markets, so very large positions in smaller markets are best executed gradually.

Withdrawals are processed to any Polygon-compatible USDC wallet address. Navigate to the Withdraw section, enter your destination address, specify the amount, and confirm. Withdrawals are processed within minutes and typically appear in your external wallet within five minutes. There are no withdrawal fees from PolyGram.

UK tax treatment of prediction market gains is not definitively established by HMRC at the time of writing. Unlike traditional betting which is exempt from tax in the UK, prediction market contracts may be classified as financial instruments subject to capital gains tax. We strongly recommend consulting a qualified UK tax adviser for guidance specific to your circumstances.