Platform comparison
| Platform | YES odds | NO odds | Fee | KYC | Settlement | |
|---|---|---|---|---|---|---|
Polymarket (via Kalshi Fees) Pick polygram.ink (preferred broker) |
99% | 1% | 0% (USDC on-chain) | No-KYC up to $1,500 | USDC, auto via UMA oracle | Place a position → |
Polymarket (direct) polymarket.com |
99% | 1% | 0% | Geo-blocked in US/UK/EU | USDC, on-chain | Place a position → |
Kalshi kalshi.com |
— | — | Up to 7% per trade | US-only, KYC required | USD | Place a position → |
Betfair Exchange betfair.com |
— | — | 2-5% commission | Full KYC from first trade | GBP / EUR | Place a position → |
Manifold Markets manifold.markets |
— | — | Play-money (mana) | None — play-money | Mana (no cash-out) | Place a position → |
Outcome probabilities
Current market-implied probability for each outcome, from the live order book.
| Outcome | Probability |
|---|---|
| Crowley wins | 99% |
| Other | 50% |
| Hong 30%+ | 1% |
| Hong <5% | 1% |
| Hong 25–30% | 0% |
| Hong 20–25% | 0% |
| Hong 15–20% | 0% |
| Hong 10–15% | 0% |
| Hong 5–10% | 0% |
| Barnes wins | 0% |
Market context
Wisconsin's Democratic primary for governor takes place on 11 August 2026, with the winner determined by a simple margin calculation: the absolute percentage-point difference between the top two finishers. The market settles on this spread rather than a binary outcome, making it useful for traders seeking granular exposure to primary competitiveness rather than just candidate selection. A 1% crowd probability suggests the market is pricing an expectation of a decisive primary, with the implied distribution heavily weighted towards larger margins.
Historical precedent from recent Midwestern Democratic gubernatorial primaries shows competitive races tend to cluster around 5–15 percentage-point margins when multiple viable candidates contest the nomination. Wisconsin's 2022 gubernatorial general election saw Governor Tony Evers defeat Republican Tim Michels by 3.3 points in a swing state context; primary dynamics often differ substantially from general-election competitiveness. Comparable races—such as Michigan's 2022 Democratic gubernatorial primary (Whitmer won by 56 points) and Minnesota's 2018 primary (Walz by 34 points)—illustrate wide variation depending on incumbent status, field fragmentation, and regional organisation.
Traders monitoring this market should track candidate announcements and field composition as the primary approaches. Fundraising disclosures, polling releases, and endorsement patterns from state labour unions and Democratic establishment figures will signal whether a crowded field is consolidating or fragmenting. The settlement window closes at the moment polls close on 11 August 2026, so programmatic traders should confirm final vote-reporting timelines with Wisconsin election officials to ensure accurate margin calculation and timely settlement execution.
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 Kalshi Fees, 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.
FAQ
- 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 fast are USDC deposits?
- Polygon credits deposits after 12 confirmations — usually under 30 seconds. Withdrawals follow the same path and land back in your wallet within minutes.
- Do I need to KYC for this market?
- On Polymarket directly, no — it's wallet-based. Intermediary brokers like Kalshi Fees trigger KYC only above $1,500 of lifetime trading volume; under that you trade pseudonymously with a single wallet address.
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