Wisconsin Governor Democratic Primary Margin of Victory

Platform comparison

Market context

Wisconsin's Democratic primary for governor takes place on 11 August 2026. The market measures the absolute percentage-point gap between the first and second-place finishers, with settlement determined by official vote tallies. A 1% crowd probability suggests traders expect a decisive outcome—either a commanding frontrunner or a fragmented field where no single challenger emerges close enough to the leader to produce a tight margin.

Historical precedent from Wisconsin Democratic gubernatorial contests shows primary margins vary sharply depending on incumbent status and field size. When an incumbent or clear establishment favourite runs unopposed by a serious alternative, margins routinely exceed 20 percentage points. Conversely, open-seat primaries with multiple credible candidates—as occurred in 2017—can produce single-digit separations. The current low probability reflects trader confidence that 2026 will follow the former pattern rather than the latter, though this hinges entirely on candidate entry decisions and endorsement consolidation over the coming months.

Traders monitoring this market should track formal candidate announcements, labour union endorsements, and fundraising disclosures filed with the Wisconsin Elections Commission, which publishes quarterly reports. Early polling data, when released, will provide the first quantitative signal of field fragmentation. Conditional orders tied to specific announcement dates—such as a major candidate's entry or withdrawal—would allow systematic exposure management without continuous manual monitoring. The settlement window closes at 23:59 UTC on 11 August 2026, leaving roughly 18 months for the primary field to crystallise.

Methodology

This page reviews Wisconsin Governor Democratic Primary Margin of Victory 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 Polymarket Bot UK, which mirrors the Polymarket order book at 0% fees.

Resolution & payout

Settlement runs on-chain. Polymarket's contract logic separates YES and NO shares as conditional tokens; at resolution the winning share lifts to $1.00 and the losing one to $0. The outcome input comes from the UMA Optimistic Oracle, which secures against bad resolution with a bond + dispute window.

Once finalised, the smart contract pays USDC to the holders' wallets within minutes — no withdrawal fees beyond Polygon network gas. Kalshi settles in USD via CFTC clearance, Betfair in account currency net of commission, Manifold in play-money mana with no cash-out.

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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Do I pay tax on prediction market profits in the UK?

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