The Iowa Senate Race is shaping up to be one of the closest contests of the midterm cycle, and the newest Iowa Senate Race 2026 polls show Ashley Hinson and Josh Turek separated by just a few points.
Prediction markets agree the race is a genuine toss-up, with Hinson's edge narrowing on one exchange and widening slightly on the other as Election Day approaches.
Here's how Polymarket and Kalshi are pricing the fight for Iowa's open Senate seat.
| 🏢 Platform | 🏷️ Pick | Price | 🤑 Profit on $100 | 📈 Trade It |
|---|---|---|---|
| Polymarket | Ashley Hinson | YES (54¢) | $85.19 | Trade it on Polymarket! |
| Polymarket | Josh Turek | YES (46¢) | $117.39 | Trade it on Polymarket! |
| Kalshi | Ashley Hinson | YES (56¢) | $78.57 | Trade it on Kalshi! |
| Kalshi | Josh Turek | YES (44¢) | $127.27 | Trade it on Kalshi! |
Below you'll find a full breakdown of the current Iowa Senate Race odds across the exchanges, but if you want to jump straight in, check out the latest Polymarket promo code or the Kalshi promo code.
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Iowa Senate Race Polymarket Midterms Odds: Top Trading Contracts
On Polymarket, the Iowa Senate Race sits in the Midterms category, where traders are pricing contracts on whether Ashley Hinson or Josh Turek wins the open seat being vacated by retiring Republican Sen. Joni Ernst.
Contracts trade from 1¢ to 99¢, with each cent mapping directly to the market's implied probability, and a Yes share settles at $1.00 if that candidate wins, $0 if they don't.
This specific market resolves to Yes if the Republican nominee wins the 2026 midterm election for U.S. Senator from Iowa, with the market closing by the end of Election Day, November 3.
Ashley Hinson (YES 54¢ / NO 47¢)
Hinson remains the Polymarket favorite even though the most recent Fox News poll (Sept. 24-28) had Turek up two points, 49% to 47%.
Traders appear to be leaning on Iowa's underlying partisan lean and Hinson's incumbency in the House, plus a Trump endorsement, rather than the latest topline poll number.
Still, the Cook Political Report's shift of this race from "Lean Republican" to a true toss-up is reflected in how close Hinson's price sits to even money.
Josh Turek (YES 46¢ / NO 55¢, -3 pts)
Turek, a state representative, picked up a notable boost earlier in the cycle when Barack Obama endorsed his bid to flip the seat.
His three-point slide on Polymarket comes even as the Fox poll shows him nominally ahead, a split that speaks to how differently markets and single polls can read a race this tight.
If he wins, Turek would end an 18-year drought for Iowa Democrats in Senate races.
Iowa Senate Race Kalshi Senate 2026 Odds: Top Trading Contracts
Kalshi lists this market under its Elections > Senate category, where it resolves by winning party once Iowa's results are certified.
Contracts here work the same way: prices in cents map directly to implied probability, a Yes share pays out $1.00 if that party's nominee wins, and the board stays live until the market closes on Nov. 3.
More than $4.7 million has already traded on this single market, a sign of how much attention this race is drawing ahead of the midterms.
Ashley Hinson (YES 56¢ / NO 45¢, +1 pt)
Kalshi traders have Hinson a bit more comfortably favored than Polymarket does, and her price ticked up another point even as the Fox poll showed her trailing.
Republicans have carried Iowa in every recent statewide cycle, and that structural advantage appears baked into how Kalshi is pricing the race.
Josh Turek (YES 44¢ / NO 57¢, -1 pt)
Turek slipped a point on Kalshi as well, keeping him priced as a slight underdog despite the momentum from his Obama endorsement and a run of competitive polling.
The one-point moves on both sides suggest Kalshi traders see this as a stable, closely-watched toss-up rather than a race that's about to break decisively either way.
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How Polymarket and Kalshi Compare on the Iowa Senate Race
Both exchanges agree on the basic shape of the Iowa Senate Race: Hinson favored, but not by much, with Turek within striking distance.
The gap shows up at the margins. Polymarket has Hinson at YES 54¢ to Turek's YES 46¢, while Kalshi has her two cents higher at YES 56¢ against Turek's YES 44¢.
That small premium on Kalshi likely reflects its larger U.S.-based, CFTC-regulated trader pool leaning more heavily on Iowa's Republican lean, while Polymarket's broader international flow has been quicker to react to Turek's recent polling and endorsement momentum. The Polymarket Midterms board and the Kalshi Senate 2026 board are telling slightly different stories about the same race, which is exactly what makes watching both worthwhile.
Iowa Senate Race Price Analysis – Market Price Influencers
The biggest recent move came on Polymarket, where Turek fell three points as Hinson held steady, even as a late-September Fox News poll had Turek up two.
Kalshi moved in smaller increments, a one-point gain for Hinson and a one-point dip for Turek, which fits a market that's treating this as a settled toss-up rather than one with fresh news to digest.
The disconnect between the newest Iowa Senate Race 2026 polls, several of which show Turek ahead or within a point, and both markets still favoring Hinson, is the central tension of this race right now.
Watch for Trump's and Obama's continued involvement on the trail, any further polling from Beacon/Shaw or Emerson, and late fundraising numbers, all of which could move these boards before Nov. 3.
| 🏢 Platform | 🏷️ Pick | Price | 🤑 Profit on $100 | 📈 Trade It |
|---|---|---|---|
| Polymarket | Ashley Hinson | YES (54¢) | $85.19 | Trade it on Polymarket! |
| Polymarket | Josh Turek | YES (46¢) | $117.39 | Trade it on Polymarket! |
| Kalshi | Ashley Hinson | YES (56¢) | $78.57 | Trade it on Kalshi! |
| Kalshi | Josh Turek | YES (44¢) | $127.27 | Trade it on Kalshi! |
How to Trade the Iowa Senate Race on Prediction Markets
Ready to take a position? Check out the best political trading apps and start trading event contracts in minutes on either exchange.
Polymarket
- Read a comprehensive Polymarket review to understand how this exchange operates.
- Follow this guide to trading on Polymarket to learn how to buy your first "Yes" or "No" contract.
- Monitor the Midterms tab on Polymarket to stay ahead of the live order book movements.
📝 POLYMARKET TERMS & CONDITIONS
18+ Only. Restrictions and eligibility requirements apply. Not available in all jurisdictions. Trading is risky. 100% loss can occur. See polymarket.com/tos 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.
Kalshi
- Read a comprehensive Kalshi review to understand how this exchange operates.
- Follow this guide to trading on Kalshi to learn how to buy your first "Yes" or "No" contract.
- Monitor the Senate tab on Kalshi to stay ahead of the live order book movements.
📝 KALSHI TERMS & CONDITIONS
Certain limitations apply. The offer is available to new users only, subject to the terms and conditions. 18+ only. Restrictions and eligibility requirements apply. Event contract trading involves significant risk and is not appropriate for everyone. Please carefully consider if it is appropriate for you in light of your personal financial circumstances. Kalshi products are not available in all jurisdictions. See kalshi.com/regulatory for more information. Not available in AZ, IL, MA, MD, MI, MT, NV, OH, and WA.
Iowa Senate Race: Final Thoughts
The Iowa Senate Race is a true coin-flip dressed up as a slight Hinson lead, with both exchanges clustered close to even money and polling that can't settle the question either way.
The Polymarket Midterms odds have moved a touch more toward Turek's camp this month while the Kalshi Senate 2026 odds have nudged toward Hinson, leaving traders on both sides of the aisle with a live market right up to Election Day.
Iowa Senate Race FAQs
What do the latest Iowa Senate Race 2026 polls show?
The most recent Fox News poll (Sept. 24-28) had Josh Turek up two points on Ashley Hinson, 49% to 47%, while earlier polls this summer and fall showed the lead flipping between the two candidates, underscoring just how close this race is.
How do Polymarket midterms odds work for the Iowa Senate race?
Polymarket's Midterms category prices this race from 1¢ to 99¢ per contract, with each cent reflecting the market's implied probability that candidate wins; a winning Yes share redeems for $1.00 once the race is called.
What is the Kalshi Senate 2026 market for Iowa?
Kalshi's Iowa Senate Race market resolves by winning party once the 2026 midterm election is certified, with contracts trading in cents the same way they do on Polymarket.
Who is favored to win the Iowa Senate race?
Ashley Hinson is the favorite on both Polymarket and Kalshi as of this writing, though her edge is narrow enough on both boards that either candidate winning would be inside the range the markets are pricing in.
When does the Iowa Senate race market resolve?
Both markets close by the end of Election Day, November 3, 2026, and settle shortly after the race is officially called.
Why are Polymarket and Kalshi pricing Hinson and Turek differently?
The two-cent gap between the platforms likely comes down to differences in who's trading on each exchange and how quickly each board has reacted to Turek's recent endorsement and polling news.
Can I trade the Iowa Senate race before Election Day?
Yes, both Polymarket and Kalshi let you buy or sell your position at the live market price any time before the race resolves, so you're never locked in until you choose to be.
