IL Senate
Illinois Senate winner? (2026)
11k contracts traded · 8.3k open
Illinois opened up with Dick Durbin’s retirement, but an open seat in a reliably blue state does not move the market much — it prices as a safe Democratic hold. The real contest is the Democratic primary; the general-election contract sits deep on the Democratic side, and the edge, if any, is in how the field consolidates rather than who ultimately wins in November.
Quick Answer
As of September 11, 2026, Juliana Stratton leads the Illinois Senate market at 98¢ — real money putting the implied probability at 98%. Forecasters rate the seat Safe D, so the gap between that rating and this price is the whole question.
Seat held by Dick Durbin (D) — open seat.
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.
Dick Durbin
Not on the 2026 ballot — the live board below carries the candidates and the current market favorite.
Illinois Senate winner? (2026)
11k contracts traded · 8.3k 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 live card locked to the Illinois Senate race — not “whichever race is closest today” — for a state paper, a newsletter or a campaign-watcher blog. Free; the credit line is the only ask. Prices refresh every 15 minutes.
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<iframe src="https://predictionmarketspicks.com/embed/midterms-race/il/hero" width="1200" height="628" frameborder="0" scrolling="no" title="Illinois Senate 2026 — live prediction market prices — PredictionMarketsPicks"></iframe> <p><a href="https://predictionmarketspicks.com/midterms-2026/illinois-senate">Illinois Senate race odds</a> by PredictionMarketsPicks</p>
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<iframe src="https://predictionmarketspicks.com/embed/midterms-race/il/sidebar" width="300" height="600" frameborder="0" scrolling="no" title="Illinois Senate 2026 — live prediction market prices — PredictionMarketsPicks"></iframe> <p><a href="https://predictionmarketspicks.com/midterms-2026/illinois-senate">Illinois Senate race odds</a> by PredictionMarketsPicks</p>
The live board above shows the current market favorite — read each contract’s price as the market’s implied probability, so a 55¢ contract is a 55% chance. Going into the cycle the seat is held by Dick Durbin (Democrat) and rated safe d; because a real-money market reprices continuously, take today’s favorite off the price, not a static rating.
Kalshi lists the Illinois Senate winner as a set of YES/NO contracts, one per outcome, each settling at $1 if it happens and $0 if it doesn’t. Buy the side you think is underpriced relative to your own probability, and the difference between your estimate and the market price is your edge. Kalshi is CFTC-regulated and open to traders in all 50 states; every price on this page links straight to the live market.
Prediction markets had a strong 2024 — Kalshi and Polymarket called all seven swing states correctly the night before, often while the polling averages were still split. Our full state-by-state scorecard, including where the markets missed, is in the 2024 accuracy audit linked below, and it’s the best base rate for how much to trust the Illinois contract this cycle.
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