Prediction HuntPrediction.com
Odds
Sports OddsNFL OddsNCAAF OddsMLB OddsTennis OddsElections OddsPolitics OddsEntertainment OddsEconomics OddsCrypto Odds
Futures
NFL FuturesMLB FuturesNCAAF FuturesMidterm Elections
All MarketsTrending
PicksArbitrageSmart MoneyAgentsPaper Trading Simulator
Promos
Best Prediction Market PromosKalshi Promo CodePolymarket Promo Code
Compare
Best Prediction Market Apps
NewsCalculatorsBlogIndustry Data
OverviewDocumentationQuickstartPricing
  • Best price across Kalshi, Polymarket & more
  • Live odds, refreshed in real time
  • Arbitrage alerts
  • Follow the smart money
  • Exclusive sign-up promos
  • Best price across Kalshi, Polymarket & more
  • Live odds, refreshed in real time
  • Arbitrage alerts
  • Follow the smart money
  • Exclusive sign-up promos
Prediction HuntPrediction.com

The home of prediction markets

Markets

  • Sports Odds
  • NFL Odds
  • College Football Odds
  • MLB Odds
  • Tennis Odds
  • Election Odds
  • Politics Odds
  • Entertainment Odds
  • Economics Odds
  • Crypto Odds
  • Trending

Edge

  • Picks
  • Smart Money Feed
  • Arbitrage Scanner
  • Paper Trading Simulator
  • AI Agents

Compare

  • Best Prediction Market Apps
  • Best Prediction Market Promos

Resources

  • News
  • Blog
  • Calculators
  • X
  • Discord

API

  • API Overview
  • API Documentation
  • Quickstart
  • API Pricing

This information is for informational and educational purposes only. Not financial advice. Always verify resolution criteria and platform rules before trading.

  • Privacy Policy
  • Terms of Use
  • API Terms
PicksSmart MoneyArbitragePromos

Live prediction market odds for IL-04 House winner?. Compare prices across Kalshi and Polymarket US and Polymarket.

Kalshi

Kalshi

4.9
Sign-up bonus

Get a $35 trading bonus

Sign-up bonus on Kalshi.

Claim offerLegal in USAVerified Sep 14, 2026

Kalshi / Polymarket US / Polymarket

XTelegramWhatsAppReddit

IL-04 House winner?

2026-11-03

Best price · tap to trade

Patty Garcia (D)94¢1.06xPolymarket USLupe Castillo (R)7¢14.29xPolymarket USChris Getty6¢16.67xKalshi
Compare all 4 outcomes across 3 venues

About This Market

Traders give Patty Garcia (D) about a 94.5% chance. Lupe Castillo (R) follows at 4.6%, Chris Getty follows at 3.0%, and Mayra Macías follows at 0.5%. Compare prices from Kalshi, Polymarket US, and Polymarket. The largest cross-platform price difference is 4.0 percentage points.

Traders give Patty Garcia (D) about a 94.5% chance. Lupe Castillo (R) follows at 4.6%, Chris Getty follows at 3.0%, and Mayra Macías follows at 0.5%. Compare prices from Kalshi, Polymarket US, and Polymarket. The largest cross-platform price difference is 4.0 percentage points.

Prediction markets on Polymarket and Kalshi are tracking the winner of the IL-04 House race. This market resolves based on the official election results from November 3, 2026, with odds fluctuating based on candidate campaigns and voter sentiment leading up to the election.

Price History

Multi-Platform Probabilities
Loading 30D data…

Live Markets

3 platforms
OutcomeConsensus
KalshiKalshi
Polymarket USPolymarket US
PolymarketPolymarket
Best price
PG
Patty Garcia (D)
94%
Kalshi96¢
Polymarket US94¢
Polymarket98¢
Polymarket US1.06x94¢
PlatformImplied %Yes bid / askNo bid / ask
KalshiKalshi
93.5%91¢96¢4¢9¢
Polymarket USPolymarket US
93.5%93¢94¢6¢7¢
PolymarketPolymarket
96.4%95¢98¢2¢6¢
LC
Lupe Castillo (R)
5%
Kalshi8¢
Polymarket US7¢
Polymarket6¢
Polymarket US14.29x7¢
PlatformImplied %Yes bid / askNo bid / ask
KalshiKalshi
4.9%2¢8¢92¢99¢
Polymarket USPolymarket US
6.5%6¢7¢93¢94¢
PolymarketPolymarket
2.5%2¢6¢94¢98¢
CG
Chris Getty
single venue3%
Kalshi6¢
—
—
Kalshi16.67x6¢
PlatformImplied %Yes bid / askNo bid / ask
KalshiKalshi
3.0%1¢6¢94¢99¢
MM
Mayra Macías
single venue1%
Kalshi1¢
—
—
Kalshi100.00x1¢
PlatformImplied %Yes bid / askNo bid / ask
KalshiKalshi
0.5%0¢1¢99¢100¢
KalshiKalshiPolymarket USPolymarket USPolymarketPolymarket

Best price among US-regulated venues.

Candidate Spotlight

About Patty Garcia (D)

Patty Garcia is the Democratic nominee for Illinois's 4th congressional district in the 2026 U.S. House election. She currently serves as the chief of staff to U.S. Representative Jesús 'Chuy' García. With over 15 years of experience working with immigrant and working-class families, she holds a PhD in education policy from the University of Illinois Urbana-Champaign.

About Lupe Castillo (R)

Lupe Castillo is the Republican nominee for Illinois's 4th Congressional District in the 2026 U.S. House elections. She previously served as the Republican Committeewoman for Chicago's 22nd Ward and was the Republican candidate against Rep. Jesus 'Chuy' García in 2024. Castillo's extensive experience in local Republican politics and her candidacy in the 2026 election underscore her active role in the district's political landscape.

About Chris Getty

Chris Getty is the mayor of Lyons, Illinois, and is running as an independent candidate for Illinois' 4th congressional district in the 2026 U.S. House election. He has served as mayor since 2009 and previously held the position of township supervisor. His extensive experience in local government and leadership roles makes him a notable contender in this race.

About Mayra Macías

Mayra Macías is a former Democratic political operative who launched an independent campaign for the Chicago-area congressional seat vacated by Rep. Jesús "Chuy" García. She previously served as the executive director of the Latino Victory Project, focusing on electing Latino leaders. Macías is relevant to this prediction market due to her recent involvement in the IL-04 congressional race and her experience in political campaigns.

Smart Trade Router

$
¢

Resolution Oracles

KalshiKalshi
Kalshi Rules
Read Full Market Rulebooks
Stats
Spread4.0%
Platforms3
Candidates4
Leader

Patty Garcia (D)

94.5% avg

Market RulebooksOfficial settlement criteria and edge cases

Market Rulebook: IL-04 House winner?

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

KalshiKalshi
Primary Rule

If the House member sworn in for IL-04 for the term beginning in 2027 is a member of the Republican Party, then the market resolves to Yes.

Edge Cases

This market is eligible for accelerated determination after a consensus of media organizations project the winner. See full rules for details.

Resolution Oracles
Kalshi Rules
Polymarket USPolymarket US
Primary Rule

This market will settle to Yes if the Republican Party nominee wins the 2026 midterm election for the IL-04 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 is the resolution date for the IL-04 House winner market?

The market resolves on November 3, 2026, coinciding with the general election date.

How do odds change for the IL-04 House race?

Odds fluctuate based on candidate activities, polling data, and voter engagement as the election date approaches.

What determines the winner in the IL-04 House race market?

The winner is determined by the official election results announced after voting concludes on November 3, 2026.

What does the IL-04 House winner 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 IL-04 House winner odds?

The latest available prices are Patty Garcia (D): 93.5¢ on Kalshi, 96.4¢ on Polymarket, 93.5¢ on Polymarket US; Lupe Castillo (R): 4.9¢ on Kalshi, 2.5¢ on Polymarket, 6.5¢ on Polymarket US; Chris Getty: 3.0¢ on Kalshi; Mayra Macías: 0.5¢ on Kalshi. 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?

Related Markets

2026 US Senate Control

View

Iowa Governor Election Winner

View

WV-01 House Election Winner

View

Alaska Governor Election Winner

View

Swiss initiatives: September 2026

Resolved Sep 27

Final odds

Prediction HuntPrediction.com coverage

IL-04 Markets Hit 97% as Forecasters Peg Garcia at 99.4%Prediction markets jumped 9 points in three days, still trailing forecasters by 2.4 points. Garcia leads Castillo by 19 points in the only public poll.Sep 20, 2026