PolymarketEvent2 live of 2 outcomes

Massachusetts Senate Election Winner

2 live outcomes · highest priced: Ed Markey (D) at 98% · first close Nov 4, 2026 · $50.5K total volume

About this event

This event tracks the outcome of the 2026 Massachusetts U.S. Senate election, measuring which political party or candidate will win the seat, including any run-offs.

How the outcomes relate

Each market corresponds to a political party whose nominee might win the race. Because only one candidate can win the election, at most one market can resolve Yes. Candidates running as independents are not covered by the major party options.

How it resolves

A market resolves to Yes if its party's nominee wins the 2026 midterm Massachusetts U.S. Senate election (inclusive of run-offs), and No otherwise. If a named nominee is replaced before election day, the market resolves based on the replacement nominee. Resolution occurs once the Associated Press, Fox News, and NBC all call the race for the same candidate. If they do not all agree, resolution is determined by the official certification.

Key dates

  • Midterm Election Year: — Year of the Massachusetts U.S. Senate election

Resolution source

Associated Press, Fox News, and NBC (or official certification if they do not all call the race for the same candidate)

AI-generated analysis · google/gemini-3.7-flash ·

Outcomes for Massachusetts Senate Election Winner
OutcomePrice24hGotcha riskTradabilityCloses
Ed Markey (D)98%±0LowMed
John Deaton (R)2%±0LowMed

Highest-priced outcome

Ed Markey (D) · 7 daysRange 98–99%