A TWAP market is a two-point comparison

An up-down market can look like a simple price race. The contract is usually more specific: compare two time-weighted averages from a defined stream and window.

Polymarket's resolution documentation describes Chainlink TWAP-resolved markets with an asset pair, a start time, a duration, and a final price comparison.

Write down the starting point

The start TWAP sets the price to beat. It is an average over a lookback window, not necessarily the ticker price you saw when you opened the page.

Save the asset pair, start time, lookback context, and recorded start value. Without that row, a later chart cannot show what the market actually compared.

Wait for the defined end

When the duration ends, the final TWAP is measured from the same Chainlink TWAP stream. The market resolves Up when the final value is equal to or above the price to beat, and Down when it is lower.

A brief move in the live spot price can be useful context, but it does not replace either TWAP observation or the duration named by the market.

Keep the comparison reproducible

Store both observations with their timestamps and the market's exact asset pair. That makes a resolution review a comparison of the contract's inputs rather than a screenshot of an unrelated price feed.

The useful question is not whether the chart is green right now. It is whether the final TWAP satisfied the rule against the recorded starting TWAP.

Further reading: Resolution.

Explore the markets: Open Polymarket (referral link).