Wisconsin Governor Democratic Primary Margin of Victory (0.2% Brackets)

Platform comparison

Market context

Wisconsin holds its Democratic gubernatorial primary on 11 August 2026, with the winner determined by the margin separating the top two finishers. The market brackets this margin into 0.2 percentage-point increments, allowing traders to isolate precise victory ranges rather than binary outcomes. Settlement depends on official canvassed results from the Wisconsin Elections Commission, typically certified within two weeks of election day.

Democratic primary contests in Wisconsin have historically produced competitive races when an incumbent is absent. The 2018 gubernatorial primary saw Tony Evers defeat Kelda Roys by 6.5 percentage points in a three-candidate field; the 2022 primary was uncontested. Comparable Midwestern Democratic primaries—such as Michigan's 2022 gubernatorial primary won by Gretchen Whitmer with a 10.7-point margin—suggest that without an incumbent, margins often exceed 5 percentage points unless multiple credible candidates fragment the vote. The current 0% probability reflects either sparse early trading or market participants awaiting candidate field clarity.

Traders should monitor candidate announcements through spring 2026, as the field composition directly determines margin distribution. Early polling, if published by Wisconsin-based outlets, will signal whether the race consolidates around one or two frontrunners or remains fragmented across three or more candidates. Campaign finance disclosures filed with the Wisconsin Elections Commission provide real-time spending data useful for assessing candidate viability. The primary date is fixed, but turnout patterns in August elections typically run 15–25% lower than general elections, which can amplify margins if support concentrates among organised voter blocs.

Methodology

This page reviews Wisconsin Governor Democratic Primary Margin of Victory (0.2% Brackets) across five venues. The live probability is the Polymarket mid-price, sourced directly from the on-chain Polygon order book; the comparison columns benchmark each venue on fee structure, KYC, settlement currency and payment rails. Every CTA routes to Kalshi Fees, which mirrors the Polymarket order book at 0% fees.

Resolution & payout

Polymarket-based markets settle through the UMA Optimistic Oracle on Polygon. A proposer submits the outcome, a two-hour challenge window opens, and unchallenged proposals finalise the resolution. Payouts settle automatically in USDC the moment the result is final — no bookmaker, no delay.

Kalshi-based markets settle in USD via the CFTC-regulated clearinghouse. Betfair Exchange settles in GBP/EUR net of commission. Manifold is play-money and does not pay out real funds.

FAQ

Where can I trade this market with the lowest fees?

Polymarket is geo-blocked in the US/UK/EU. The easiest 0%-fee broker into the same order book is Kalshi Fees. Kalshi charges up to 7% per trade; Betfair Exchange takes 2-5% commission on net winnings.

Is this market available outside the US?

Polymarket itself is geo-blocked in the US/UK/EU. Always check the legal status of prediction markets in your jurisdiction before trading.

How does resolution work?

Through the UMA Optimistic Oracle on Polygon: a proposer submits the outcome, a two-hour challenge window opens, and USDC payouts settle automatically once the result is final.

What's the difference between YES and NO shares?

A YES share pays $1.00 if the event happens, $0 otherwise. A NO share pays $1.00 if the event doesn't happen. The market price between 0¢ and 100¢ is the implied probability.

How reliable are the quoted odds?

The YES/NO percentages are the live mid-prices of the Polymarket order book. On deep markets they move every few seconds; on thinner ones you'll see short plateaus.