Wisconsin Governor Democratic Primary Margin of Victory

Platform comparison

Market context

Wisconsin's Democratic Party will hold its gubernatorial primary on 11 August 2026 to select its nominee for the general election. This market measures the winning margin—the percentage-point gap between first and second place among valid votes cast. A YES share pays out if that margin falls within a specific range (the exact threshold is not specified in the market description provided); a NO share pays out if the margin falls outside that range. The 1% probability currently assigned to YES suggests traders expect either a decisive victory by one candidate or, conversely, an extremely tight race—outcomes that would fall outside whatever margin band this contract defines.

Wisconsin's Democratic primary electorate has historically favoured establishment-backed candidates, though recent cycles show increased volatility. In 2022, the gubernatorial general election saw incumbent Tony Evers defeat Republican Tim Michels by 3.3 percentage points in a state trending competitive. Primary margins in Wisconsin have ranged from single digits to double digits depending on field size and candidate consolidation. If multiple credible candidates enter the 2026 Democratic primary, vote splitting could produce a narrow margin; conversely, if one candidate secures early endorsements from major party figures, a larger separation becomes more likely.

Key developments to monitor include candidate announcements (expected in late 2025 or early 2026), endorsements from sitting Democratic officials, and any shifts in state economic conditions that might reshape primary dynamics. The Wisconsin Democratic Party's primary date sits unusually late compared to many states, potentially allowing national trends and other early contests to influence candidate viability before voters cast ballots.

Methodology

We track Wisconsin Governor Democratic Primary Margin of Victory across the five venues with material prediction-market liquidity. The probability shown is the live Polymarket mid; the comparison rows summarise how each venue treats the underlying contract — fees, KYC thresholds, settlement currency, deposit options. The highlighted row marks the cheapest route into Polymarket's order book.

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.

UK Frequently Asked Questions

Where can I trade this market with the lowest fees?

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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.

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