Wisconsin Governor Democratic Primary Margin of Victory (Small Brackets)

Platform comparison

Market context

Wisconsin's Democratic primary for governor takes place on 11 August 2026. This market settles on the margin of victory between the top two finishers, measured as the absolute percentage-point difference in valid votes cast. The crowd currently assigns zero probability to this outcome, suggesting either extreme confidence in a particular margin bracket or insufficient liquidity in this specific segment.

Wisconsin Democratic gubernatorial primaries have historically produced competitive races when the incumbent governor is term-limited or vulnerable. The 2018 primary saw Tony Evers defeat Kelda Roys and other challengers with roughly 45% of the vote in a fragmented field—a margin of approximately 12 percentage points over second place. Comparable Midwestern Democratic primaries in 2022 and 2024 showed considerable variation: some consolidated around a frontrunner early, whilst others remained fluid until late summer. The zero probability reading here likely reflects either that traders view a particular margin bracket as implausible given expected field dynamics, or that this specific bracket sits outside consensus expectations for how decisively the primary will resolve.

Key catalysts include candidate announcements and endorsement patterns through spring 2026, which typically signal whether the race will fragment or consolidate. Polling releases from established firms will provide concrete data on frontrunner strength and second-place positioning. Any significant candidate withdrawals or late entrants could materially shift margin expectations. The settlement window closes immediately after polls close on 11 August, leaving no room for post-election recounts or disputes to influence the final margin calculation.

Methodology

This page is a comparison snapshot: one live quote, four reference venues with their key attributes, and a single execution path — every trade button routes to Who Will Win 2026, which mirrors the Polymarket order book directly.

Resolution & payout

At resolution the UMA oracle takes over: a proposer posts the outcome with a bond, any token holder can dispute within two hours. Without dispute the result is accepted and the smart contract distributes USDC instantly.

On Kalshi (CFTC-regulated) resolution runs through their in-house clearing engine in USD. Betfair Exchange settles after match end in the account's local currency. Manifold pays no cash — only its in-platform "mana" currency.

FAQ

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.

What does Polymarket cost to trade?

Polymarket itself charges 0% — the only cost is the Polygon network fee, typically under $0.01 per transaction. Off-chain venues like Kalshi or Betfair charge 2-7% commission.

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.