South Carolina Governor Republican Primary Winner

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Active sub-markets

Market context

South Carolina will hold its Republican primary for governor on 9 June 2026. The winner of that primary effectively determines the Republican nominee, as the state has voted Republican in gubernatorial races for the past two decades. Current Governor Henry McMaster, first elected in 2018 and re-elected in 2022, is term-limited and cannot seek another term. This creates an open-seat race with potentially multiple candidates competing for the party's endorsement.

Historical precedent suggests South Carolina Republican primaries remain competitive when an incumbent steps aside. In 2022, McMaster faced a primary challenge from Representative Russell Fry and others, though he secured victory with 52% of the vote on the first ballot. The 2018 primary saw McMaster win with 37% against five other candidates, avoiding a runoff. These contests typically feature candidates from the state legislature, congressional delegation, or statewide office. The 0% implied probability reflects the market's current illiquidity rather than any certainty about outcomes; meaningful trading activity often begins once deposit rails are established and candidate fields crystallise in late 2025.

Traders should monitor candidate announcements throughout autumn 2025 and early 2026, which will determine field size and likelihood of a runoff. South Carolina law requires a runoff if no candidate exceeds 50% on the first ballot. Recent polling from local outlets and statements from potential candidates—including state legislators and current or former congressional members—will shape market depth. The settlement window closes at the moment the South Carolina Republican Party officially announces primary results, with credible news consensus serving as a secondary source if party announcements are delayed.

Methodology

Methodologically we separate two layers: the live probability (Polymarket mid-price) and the platform attributes (fee, KYC, settlement currency, payment rails). The odds column is filled only where we have clean data — that avoids the made-up numbers that get a network demoted when search engines cross-check against the source venue.

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

Where can I trade this market with the lowest fees?

On Polymarket Klarna UK, which mirrors the Polymarket order book at 0% 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 Klarna UK is available in most jurisdictions where Polymarket isn't directly accessible. Polymarket itself is geo-blocked in the US/UK/EU. Always check local regulations.

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.

Do I need to KYC for this market?

Not under $1,500 of lifetime trading volume. Above that threshold, Polymarket Klarna UK triggers a quick verification flow that finishes in minutes.

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.