Election odds › Massachusetts
Massachusetts election odds, 2026
What the prediction markets Polymarket and Kalshi price for Massachusetts's Senate, governor and House races. Democrats won the Senate race · Democrats won the governor race · House: 9 of 9 districts priced, Democrats expected to win 8.8. Prices are probabilities set by traders putting money on the outcome, not our forecast.
Massachusetts Senate race
Settled: Democrats won. A day before, Polymarket gave Democrats 98% and Kalshi 99%. Polymarket called it. Kalshi called it.
Massachusetts governor race
Settled: Democrats won. A day before, Polymarket gave Democrats 97% and Kalshi 97%. Polymarket called it. Kalshi called it.
Massachusetts House districts
9 of 9 districts priced. Democrats are expected to win 8.8 of the priced seats; favoured in 9, toss-up in 0, Republicans favoured in 0.
| District | Favoured | Polymarket | Kalshi | Candidates |
|---|---|---|---|---|
| MA-01 | Democrats won | D 100% | D 99% | |
| MA-02 | D 99% | D 100% | D 98% | |
| MA-03 | D 96% | – | D 96% | Lori Trahan v Gary Grossi |
| MA-04 | D 97% | – | D 97% | Jake Auchincloss v Tom Stalcup |
| MA-05 | D 98% | – | D 98% | |
| MA-06 | D 98% | D 100% | D 96% | Dan Koh v Micah Jones |
| MA-07 | D 98% | – | D 98% | |
| MA-08 | D 96% | – | D 96% | Stephen Lynch v Robert Burke |
| MA-09 | Democrats won | D 100% | D 96% | Bill Keating v Tyler MacAllister |
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Odds from Polymarket and Kalshi. Market prices are information, not investment advice. Where only one exchange prices a race, the other is shown as having no market. The national map · How the markets did.