Every market on Predictions comes with contract terms, shown as the market's rules, and those terms, together with the Polymarket US Rulebook, decide how a contract you trade on the Betr app gets settled.
Rules come first, always
Don't judge a market by its title. A title like "Will Team A beat Team B?"* tells you the topic, but it's the rules section underneath that spells out the resolution source, the exact cutoff date, and how edge cases get handled, such as overtime, a postponed game, or a tie. If there's ever a conflict between what the title implies and what the rules say, the rules win.
When a clarification happens
Occasionally, Polymarket US, as the exchange, posts a clarification to explain how a market's existing rules should be read, for example when wording could be interpreted more than one way or a resolution source needs to be specified. A clarification does not change the market question. Separately, as permitted by the Polymarket US Rulebook, Polymarket US may modify a contract's terms, including its resolution sources. Clarifications and modifications become part of the contract terms when posted. When a clarification is posted, Polymarket US may cancel resting orders in that market so they are not executed under the clarified rules.
Why it matters to you
If you've got an open limit order sitting in a market, a clarification can result in that order being canceled, and you may not receive a separate notice that it was canceled. It's a good habit to check back on markets you're active in, especially ones tied to fast-moving news, so a clarification doesn't catch your open orders off guard.
*The example above is for illustrative purposes only and does not reflect an actual market or outcome.
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Predictions on Betr are event contracts listed on Polymarket US (QCX LLC), a CFTC-designated contract market, and cleared through Polymarket Clearing (QC Clearing LLC). Betr provides the app you use to access Polymarket US. Betr is not the exchange or a broker. Trading event contracts involves risk, and you can lose the full amount you pay for a contract, plus fees. Each contract is governed by its contract terms and the Polymarket US Rulebook (https://polymarketexchange.com/files/legal/latest/rulebook).