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How Polymarket Election Markets Work (Winner, Party Control and Margins)

Explainer · live examples updated September 24, 2026, twice a day

Election markets ask who wins a race, which party controls a chamber, or by how much a candidate wins. Winner markets list each candidate as its own yes/no outcome; party-control markets usually have two or three outcomes.

Prices react to polls, debates and early returns, which makes them a live read of how traders see the race — a different signal from polling averages.

Live examples

Los Angeles Mayoral Election

Nithya Raman 58% · 2 live outcomes · $352.3K traded in 24h

Rules excerpt from Polymarket: “The 2026 Los Angeles mayoral election will be held on June 2, 2026, to elect the mayor of Los Angeles, California. If no candidate receives a majority of the vote, a runoff election will be held on November 3, 2026. This market will resolve according to the candidate that wins the election. The primary resolution source for this market will be a consensus of credible reporting; however, if there is any ambiguity in …”

Democratic Presidential Nominee 2028

Alexandria Ocasio-Cortez 18.2% · 53 live outcomes · $316.2K traded in 24h

Rules excerpt from Polymarket: “This market will resolve to “Yes” if the named individual wins and accepts the 2028 nomination of the Democratic Party for U.S. president. Otherwise, this market will resolve to “No”. The resolution source for this market will be a consensus of official Democratic Party sources. Any replacement of the democratic nominee before election day will not change the resolution of the market.”

Presidential Election Winner 2028

JD Vance 20.6% · 53 live outcomes · $308.0K traded in 24h

Rules excerpt from Polymarket: “The 2028 US Presidential Election is scheduled to take place on November 7, 2028. This market will resolve to the person who wins the 2028 US Presidential Election. The resolution source for this market is the Associated Press, Fox News, and NBC. This market will resolve once all three sources call the race for the same candidate. If all three sources haven’t called the race for the same candidate by the …”

What to check before trading

The rules text on each market is what decides the outcome. Our market pages summarise it under “How this market resolves”, and how Polymarket resolves markets explains proposals, disputes and payout times.

Live odds: 2028 Presidential Election odds · 2026 Midterms odds · World Elections odds

Frequently asked questions

How do Polymarket election markets resolve?

On the result as defined in the rules — typically the certified winner or the call by named sources — with specific handling for recounts and disputes.

Are Polymarket election odds a poll?

No. They are prices set by traders risking money; they often move with polls but also react to other news.

More market types

Up or Down markets · Crypto price markets · Tweet count markets · Temperature markets · Fed decision markets · Multi-outcome markets · “By date” markets · Yes/No markets · Mention markets · Sports game markets · Economic data markets · Box office markets · Awards markets

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