IA Gov
Iowa Governor winner? (2026)
3291k contracts traded · 2343k open
Iowa is open for the first time since 2017: Kim Reynolds is not seeking another term. The market prices this as a Republican-leaning seat in a state that has moved right at the top of the ticket, and the contract is quoted alongside an Iowa Senate race and a combination contract on the pair. Read the live price as the market’s view of how much of that statewide lean transfers to an open governor’s office.
Quick Answer
As of November 1, 2026, Rob Sand leads the Iowa governor market at 85¢ — real money putting the implied probability at 85%. The seat is open, so that price is the market’s read on the field and the environment, with no incumbent anchoring it.
Seat held by Kim Reynolds (R) — open seat; not seeking re-election.
Why trust the price: prediction markets called all seven 2024 presidential swing states correctly, often while polling averages were still split. Our state-by-state audit grades where they missed too.
Prices updated Nov 2, 12:37 AM UTC · refreshed hourly through Election Day.
The same contract on two exchanges. Price to buy = the ask plus each venue’s taker fee, per contract.
Rob Sand
100 contracts: $85.89 vs $86.84 — $0.94 cheaper on Kalshi
Zach Lahn
100 contracts: $16.94 vs $15.89 — $1.05 cheaper on Polymarket US
18+ Only. Restrictions and eligibility requirements apply. Not available in all jurisdictions. Trading is risky. 100% loss can occur. See https://polymarketexchange.com/files/legal/Polymarket%20US%20Rulebook%20(2026.09.30).pdf for more information. The Polymarket US App serves as an independent software provider and affiliate of Polymarket US and Polymarket Clearing, the CFTC-regulated exchange and clearing organization.
Fees: Kalshi 7% × price × (1 − price); Polymarket US 6.95% × price × (1 − price). Polymarket US is the venue US traders use. Ranked by price only — never by what a venue pays us. Where it’s cheapest today →

Rob Sand
Democrat85¢
Zach Lahn
Republican16¢
Kim Reynolds R
Open seat · not seeking re-election — OPEN SEAT · not on the 2026 ballot
Seat facts checked 2026-09-17.
Iowa Governor winner? (2026)
3291k contracts traded · 2343k open
How to read this
Each contract pays $1 at resolution, so the price in cents is the market’s implied probability — a 58¢ contract is a 58% chance. When the leading price sits near 50¢, the market is telling you the race is a genuine coin flip. A leg with no price shows a dash; we never fill one in.
Iowa also elects a U.S. senator on November 3, 2026, and Kalshi prices that race separately. Kalshi additionally lists a four-outcome Senate-and-Governor combination contract for Iowa, priced against the product of its two legs on the Senate race page.
The general-election candidates for the Iowa governor race are Rob Sand (Democrat) and Zach Lahn (Republican), per Ballotpedia’s general-election listing as of 2026-09-23. Election Day is November 3, 2026.
Yes. Kim Reynolds (Republican) is not seeking re-election, so no incumbent is on the November 3, 2026 ballot. With no incumbency anchor, the contract moves on the field and the national environment.
The Quick Answer at the top of this page states the leading contract and its price as of the last refresh. A leg priced in the 80s or 90s is the market calling the race; a leading price near 50¢ is the market saying it does not know. We carry no forecaster rating for governor races, so the price stands on its own here rather than against a published band.
Kalshi lists it under the event ticker GOVPARTYIA-26 — one YES/NO contract per leg, each settling at $1 if that side wins the November 3, 2026 election and $0 otherwise. Every price on this page links straight to the live market. Kalshi is CFTC-regulated and available in most states, with sports contracts restricted in some. Iowa also has a 2026 Senate race on the board, linked below.
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