PGA Tour: The Open Championship Winner

Platform comparison

Market context

Scottie Scheffler defends his 2025 Claret Jug as the clear favourite for the 2026 Open Championship at Royal Birkdale, with sportsbooks pricing him between +400 and +700 depending on the venue. The current prediction-market implied probability of 11% for a specific listed player aligns closely with the 12% win probability shown across major betting aggregators, yet diverges from the broader field odds where Scheffler alone commands roughly 14–17% in traditional books. This narrow gap suggests the market is efficiently pricing the top contender, but traders should note that prediction markets often lag sportsbooks when early odds shift on form or injury news.

Historically, Open Championship markets have seen significant probability swings between early pricing and tournament week, particularly when European contenders like Rory McIlroy or Tommy Fleetwood gain momentum on home soil. McIlroy, currently second favourite at +800 to +850, has previously underperformed in early odds before surging, while Fleetwood’s +1500 to +1800 line reflects his consistent top-5 finishes but lack of a major win. The 11% YES probability for a single listed player is therefore conservative compared to the combined top-three implied win rates in sportsbooks, which total roughly 35–40%.

Traders should monitor Scheffler’s schedule for the 2026 season, especially his participation in pre-Open majors like the US Open and PGA Championship, as a missed event or poor finish could trigger rapid odds contraction. Recent coverage from CBS Sports notes Fleetwood as a model surprise who may stumble despite low odds, highlighting the volatility in early major pricing [2]. Additionally, any injury updates or withdrawal announcements from the top five favourites will directly impact the 11% probability, given the market’s immediate resolution to “No” if a listed player is eliminated under official tournament rules.

Sources: 1 · 2 · 3 · 4 · 5

Methodology

This page reviews PGA Tour: The Open Championship Winner 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 vs Polymarket, which mirrors the Polymarket order book at 0% fees.

Resolution & payout

Polymarket-based markets settle through the UMA Optimistic Oracle on Polygon. A proposer submits the outcome, a two-hour challenge window opens, and unchallenged proposals finalise the resolution. Payouts settle automatically in USDC the moment the result is final — no bookmaker, no delay.

Kalshi-based markets settle in USD via the CFTC-regulated clearinghouse. Betfair Exchange settles in GBP/EUR net of commission. Manifold is play-money and does not pay out real funds.

FAQ

Where can I trade this market with the lowest fees?

Polymarket is geo-blocked in the US/UK/EU. The easiest 0%-fee broker into the same order book is Kalshi vs Polymarket. Kalshi charges up to 7% per trade; Betfair Exchange takes 2-5% commission on net winnings.

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 vs Polymarket trigger KYC only above $1,500 of lifetime trading volume; under that you trade pseudonymously with a single wallet address.