A prediction-market trade is not settled by the outcome you personally think occurred. It settles according to the contract’s written resolution criteria. That means the source agency, deadline, definition of the event and treatment of delays can matter as much as the real-world headline. A game can appear finished while the contract remains undetermined, and a cancelled event can produce a treatment that differs from a sportsbook void rule.
The CFTC’s consumer guidance says customers are entitled to clear terms describing payout, prices and how settlement determinations will be made. Its July 2026 event-contract certification advisory went further, highlighting settlement methodology and data sources as information exchanges need to analyze when listing contracts.
The resolution source is part of the contract
Many event contracts name one or more authoritative sources. A sports contract may rely on a governing league and a recognized statistics source. A government-data contract may use an agency release. A political contract may define a certification process or official result.
The source matters when competing reports disagree. If a social-media post says a player scored 20 points but the governing league later corrects the official box score to 19, the contract should follow the source and timing rule written into the terms. Traders should not assume the first public number controls.
Kalshi’s market-outcome guidance says determination timing can depend on when the defined source agency publishes data. That is a useful general lesson even beyond one platform: settlement is a rules process, not simply a human judgment that “the event is over.”
Postponed events can remain alive
Consider a basketball contract tied to a game scheduled for Tuesday. If the game is postponed until Wednesday, the rules may keep the market open and settle after the rescheduled game. A trader expecting an automatic void because a sportsbook might use that rule could be wrong.
A current sports-contract example states that if a game is postponed or delayed, the market remains open and closes after a rescheduled game played within a specified window. That language changes both exposure and timing. The trader may carry the position longer than expected, and new information can arrive before the rescheduled event.
GambleRoad’s betting markets guide explains common sportsbook market types. Event-contract users should treat postponement language as a separate contract term rather than importing a sportsbook convention.
Cancellation can lead to a special settlement rule
When a game is cancelled and not replayed within the specified window, an event contract may not simply resolve Yes or No. Some current sports rules state that affected markets can resolve to a fair price under the exchange rules. The exact treatment depends on the filed terms and should not be generalized to every contract series.
This is why reading only the market title is dangerous. “Team A wins” sounds binary, but a cancelled event creates a third operational problem: the underlying event never produces the scheduled evidence. The contract needs a rule for that scenario. Depending on the product, the answer might be a fair-value procedure, a special expiration rule or another predefined treatment.
The CFTC’s July 2026 certification advisory specifically criticizes vague template-style certifications that make it difficult to evaluate settlement methodology and data sources. That regulatory concern mirrors the customer’s concern: ambiguous settlement is a product-design risk.
Corrections can matter after the apparent finish
Sports and government statistics can be corrected. A league may revise a scoring decision, an agency may update a release, or an official certification may occur after media outlets call an outcome. Contract terms should define the determination time and authoritative source so the exchange knows which version controls.
For example, a market on a team’s third-quarter points might explicitly exclude overtime and rely on the governing league’s quarter scoring. If a television graphic includes a late correction differently, the contract does not become ambiguous as long as the official source and section of play were defined in advance.
This is another reason a headline probability should never substitute for full rules. The expected event outcome and the settlement mechanics are separate. You can forecast the sports result correctly and still misunderstand the contract if your interpretation of overtime, correction timing or source hierarchy is wrong.
Disputes happen after determination but before finality
Exchange systems often distinguish between market close, determination and final settlement. A contract can stop trading before funds are finally paid. During that interval, the exchange may verify source data or apply a dispute process under its rulebook.
Kalshi’s public documentation describes a determination stage followed by settlement. That structure illustrates why “the game ended five minutes ago” does not necessarily mean cash should already be final. The timing can vary by data source, manual review and market type.
For longer-dated contracts, GambleRoad’s futures betting guide discusses the practical risk of waiting for an event. Prediction-market contracts add formal exchange settlement and source rules to that timing risk.
A settlement checklist that actually changes risk
Before trading, identify the exact sentence that makes Yes settle at $1. Then find the official resolution source, the close time, the determination time and any postponement or cancellation clause. Check whether overtime, recounts, appeals, revisions or rescheduled events are included or excluded where relevant.
If a contract has no clear answer for an edge case you consider plausible, that uncertainty is part of the risk. The CFTC expects transparent contract terms precisely because traders cannot price a product intelligently when they do not know how the exchange will resolve unusual outcomes.
The most important settlement habit is simple: predict the contract, not just the event. A trader can be right about what happened in the world and wrong about what the written market asked.
That distinction is especially important for markets with multiple strikes on the same event. A correction can move one threshold from Yes to No while leaving another unchanged. Traders should therefore read the rule for the exact contract they hold, not rely on a general event page or a neighboring strike with similar wording.
Precision matters.
One more practical distinction is the difference between a market being closed and a contract being finally settled. Trading can stop because the scheduled event window has ended, while settlement still waits for the named source to publish or confirm the required result. That gap can matter when an official statistic is revised, a game is suspended, or the source agency publishes a correction after the apparent finish. A trader should therefore avoid treating the last traded price, a television result, or an unofficial live-data feed as final settlement evidence unless the contract rules say that source controls.