Iowa governor race 2026 odds

Iowa elects a new governor after Republican Gov. Kim Reynolds decided not to seek a third term. Democrat Rob Sand, the state auditor, faces Republican businessman and farmer Zach Lahn, who won the June primary in an upset over Trump-endorsed Rep. Randy Feenstra. The election is on November 3, 2026. These are the live odds from Polymarket and Kalshi side by side.

Who will win the Iowa governor race?

Each price is the cost of a share that pays $1 if that candidate wins, so it reads as the market’s chance. Use the odds converter to compare it with sportsbook odds.

The race

Sand has raised a record sum for an Iowa governor’s race, and Cook Political Report moved the race to lean Democrat in the summer. Iowa also has an open Senate seat on the same ballot. Checked October 2026 against recent reporting.

Election night in Iowa

Polls close at 9 p.m. Eastern (8 p.m. Central), and absentee ballots must be received by the close of polls. See every state’s timing on our election night hub.

How this market settles

• Polymarket resolves once the Associated Press, Fox News and NBC have all called the race for the same candidate, or on the official certified result if they haven’t.
• Kalshi settles on the party of the governor inaugurated after the 2026 election, and can settle early once a consensus of media organisations projects the winner.

Rules as published on the venues’ governor markets, checked October 2026. Until a market settles, a price near $1 is a position you can sell, not a payout.

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Related: Iowa Senate race · Election night hub · Ohio governor race · All politics markets