Question 1

What are the current odds in the 2026 Illinois House race?

Accepted Answer

As of Oct 23, 2026, 12:17 PM ET, Polymarket prices Democrats (Garcia) 97¢, Republicans (Castillo) 2¢. A price in cents reads as a percent chance. $65k has traded on this market.

Question 2

When is the 2026 Illinois House election?

Accepted Answer

Election day is Tuesday, November 3, 2026.

Question 3

Where do these odds come from?

Accepted Answer

Polymarket, the largest prediction market, synced every five minutes; Kalshi prices are available with the exchange toggle. Election.Market does not operate markets or take bets.

IL-04 House