2026 U.S. Open: To Make the Cut

Platform comparison

Active sub-markets

Market context

The 2026 U.S. Open is underway at Shinnecock Hills, and the cut is the immediate swing factor for any player-related make-the-cut contract. The championship is a 72-hole stroke-play event, with the field reduced to the low 60 scores and ties after 36 holes, so Friday’s scoreboards and live cut projections matter far more than pre-event reputation alone.[2][7]

That is why a **0% YES** crowd price needs to be read against recent comparable U.S. Open cut behaviour rather than as a statement that no player can qualify. On Friday evening, reporting put the actual cut at **4 over**, with DataGolf estimating a **93%** chance of finishing there, after earlier live projections had still shown a range from **+2** to **+4** as the leaderboard moved.[1][4][5] Shinnecock also has a record for stern scoring relative to par, which tends to compress the market around players already near the line.[6][9]

For traders, the key catalysts are simple: the final second-round scoring updates, any weather-driven pace changes, and whether a listed player still has a mathematical path once the 36-hole line is set. The official championship window runs through 21 June, and the event’s own rules mean a player cannot win a make-the-cut contract if they are already outside eligibility before the cut is final.[2][7] In a cross-platform comparison, sportsbook-derived prices and analyst cut models have generally tracked the live scoreboard far more closely than a 0% prediction-market print, which usually signals an illiquid or stale contract rather than a true impossibility.[1][4][5]

Sources: 1 · 2 · 3 · 4 · 5

Methodology

We track 2026 U.S. Open: To Make the Cut on the five venues with material liquidity for prediction markets. Live odds come from the Polymarket Polygon order book — the only source that ships real-time data under an open licence. For Kalshi, Betfair and Manifold we list platform attributes (fee, KYC, settlement, payment) instead of fabricated odds, because their APIs use non-comparable contract definitions.

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

Is this market available outside the US?

Best Prediction Markets 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.

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 does it cost to trade on Best Prediction Markets?

Zero. Best Prediction Markets routes every order to the live Polymarket order book; the only cost is the Polygon network fee, typically under $0.01 per transaction.

Do I need to KYC for this market?

Not under $1,500 of lifetime trading volume. Above that threshold, Best Prediction Markets 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.