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Live prediction market odds for Which party will win the House race for IL-17?. Compare prices across Kalshi and Polymarket US and Polymarket.

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Claim offerLegal in USAVerified Sep 14, 2026

Kalshi / Polymarket US / Polymarket

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Which party will win the House race for IL-17?

2026-11-04

Best price · tap to trade

Eric Sorensen (D)97¢1.03xKalshiDillan Vancil (R)5¢20.00xPolymarket US

About This Market

Traders give Eric Sorensen (D) about a 96.9% chance. Dillan Vancil (R) follows at 3.4%. Compare prices from Kalshi, Polymarket US, and Polymarket. The largest cross-platform price difference is 2.7 percentage points.

Traders give Eric Sorensen (D) about a 96.9% chance. Dillan Vancil (R) follows at 3.4%. Compare prices from Kalshi, Polymarket US, and Polymarket. The largest cross-platform price difference is 2.7 percentage points.

Polymarket and Kalshi are tracking the House race for IL-17, set for November 4, 2026. This contest is pivotal as it could influence the balance of power in Congress, impacting legislative priorities and national policies.

Price History

Multi-Platform Probabilities
Loading 30D data…

Live Markets

3 platforms
OutcomeConsensus
KalshiKalshi
Polymarket USPolymarket US
PolymarketPolymarket
Best price
ES
Eric Sorensen (D)
97%
Kalshi97¢
Polymarket US98¢
Polymarket98¢
Kalshi1.03x97¢
PlatformImplied %Yes bid / askNo bid / ask
KalshiKalshi
95.8%94¢97¢3¢6¢
Polymarket USPolymarket US
97.0%96¢98¢2¢4¢
PolymarketPolymarket
97.9%98¢98¢2¢3¢
DV
Dillan Vancil (R)
3%
Kalshi7¢
Polymarket US5¢
Polymarket3¢
Polymarket US20.00x5¢
PlatformImplied %Yes bid / askNo bid / ask
KalshiKalshi
4.5%3¢7¢93¢97¢
Polymarket USPolymarket US
4.0%4¢5¢95¢96¢
PolymarketPolymarket
1.8%2¢3¢97¢98¢
KalshiKalshiPolymarket USPolymarket USPolymarketPolymarket

Best price among US-regulated venues.

Candidate Spotlight

About Eric Sorensen (D)

Eric Sorensen is the U.S. Representative for Illinois' 17th Congressional District, serving since January 2023. Before entering Congress, he was a local meteorologist in Rockford and the Quad Cities for nearly 20 years. As a member of the House Agriculture and Science, Space, and Technology Committees, Sorensen advocates for sustainable jobs and supports family farms and rural communities in his district.

About Dillan Vancil (R)

Dillan Vancil is a Republican candidate for Illinois's 17th Congressional District. He is the founder and CEO of Dame Fine Coffee, a chain of seven coffee shops in west-central Illinois and eastern Iowa. Vancil has served as vice president of the West Central School Board and on the Eagle View Health System board.

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Resolution Oracles

KalshiKalshi
Kalshi Rules
Read Full Market Rulebooks
Stats
Spread2.7%
Platforms3
Candidates2
Leader

Eric Sorensen (D)

96.9% avg

Market RulebooksOfficial settlement criteria and edge cases

Market Rulebook: Which party will win the House race for IL-17?

Official settlement criteria, resolution sources, and edge cases across Kalshi and Polymarket US.

KalshiKalshi
Primary Rule

If the House member sworn in for IL-17 for the term beginning in 2027 is a member of the Democratic Party, then the market resolves to Yes.

Resolution Oracles
Kalshi Rules
Polymarket USPolymarket US
Primary Rule

This market will settle to Yes if the Democratic Party nominee wins the 2026 midterm election for the IL-17 congressional district seat. Outcome sourced from relevant government authorities. The determination of the winner includes any runoff, tiebreak, or other relevant procedure under the applicable rules of the relevant jurisdiction.

Frequently Asked Questions

What factors influence the odds in the IL-17 House race?

Key factors include candidate popularity, campaign funding, and voter turnout. Additionally, national political trends and local issues can sway public opinion.

How do prediction markets reflect public sentiment for the IL-17 race?

Prediction markets aggregate bets from participants, reflecting their expectations about the election outcome. Changes in odds can indicate shifts in public sentiment or new information.

What is the historical significance of the IL-17 district?

The IL-17 district has seen competitive races in the past, often reflecting broader national trends. Its outcomes can serve as a bellwether for future elections in similar districts.

What does the Which party will win the House race for IL-17 prediction market track?

The outcomes listed above show how traders are pricing this question. Compare outcome prices from Kalshi, Polymarket US, Polymarket in one place. Each price reflects the market’s implied probability, not a guaranteed result.

What are the latest Which party will win the House race for IL-17 odds?

The latest available prices are Eric Sorensen (D): 95.8¢ on Kalshi, 97.9¢ on Polymarket, 97.0¢ on Polymarket US; Dillan Vancil (R): 4.5¢ on Kalshi, 1.8¢ on Polymarket, 4.0¢ on Polymarket US. Prices are quoted in cents per $1 share. Check the venue for executable prices and available liquidity.

Learn more:How to Read Prediction Market PricesCompare Fees Before You TradeNew to Polymarket?

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Swiss initiatives: September 2026

Resolved Sep 27

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Trader up $131K lifetime bet $1.3K on No at 94¢

2d ago
PolymarketPolymarket USWill the Republican Party win the IL-17 House seat?Trade on Polymarket US →

Prediction HuntPrediction.com coverage

IL-17 Market Drops 22 Points: Can Sorensen Hold His Seat?IL-17 repriced from 94% to 72% Democrat in three days. Kalshi still shows 96% while Polymarket sits at 47%, exposing a sharp platform split.Aug 10, 2026Sorensen Favored at 88% in IL-17 Despite 32-to-1 Fundraising GapVancil has raised $30K against Sorensen's $960K war chest. Cook rates IL-17 Likely Democratic with a D+5 partisan index.Jun 23, 2026