2026 U.S. Open: To Make the Cut

Platform comparison

Active sub-markets

Market context

The 2026 U.S. Open is being played at Shinnecock Hills from 18–21 June, with the cut determined after 36 holes for the top 60 players and ties.[1][3] A **0% yes** price means the market is currently treating a named player making the weekend as effectively impossible or already out of contention, which is consistent with a cut market late in a major once scores and tee-time order have separated the field.[2]

That framing matters because Shinnecock is a demanding par-70 set at 7,440 yards, and the projected cut line on Friday morning was around **+2**, a level that usually leaves little room for slow starts or weather-related drift.[2][5] In comparable cut markets, liquidity tends to concentrate only when there is a plausible path through the round-two scoreboard; otherwise, depth thins quickly as traders avoid funding positions that can be invalidated by a missed cut or an already impossible scoreline. For payment-led users, the practical constraint is not only conviction but on-ramp friction: deposits that clear quickly via familiar rails are what keep books active enough for intraday repricing, while slower withdrawal or funding routes typically suppress churn.

The main catalysts are the live leaderboard, the official cut announcement after play, and any schedule disruption that could push the determination window towards the market’s expiry rules.[3] The US Open is scheduled to finish on 21 June, so the decisive questions for this market are whether the player is still within the cut line, whether play is completed on time, and whether any exceptional postponement alters settlement timing.[1][3] With the event already underway and official coverage updating scores continuously, any move away from 0% would need a very specific late-round improvement rather than a broad tournament narrative.[3]

Sources: 1 · 2 · 3 · 4 · 5

Methodology

This page reviews 2026 U.S. Open: To Make the Cut across five venues. We show live odds for Polymarket-based markets (sourced from the Polygon order book); for other venues we list platform attributes, since the comparable contracts are not exposed via a public API on every venue. Every CTA points at Polymarket Klarna UK — the application we operate, where you trade directly against 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

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.

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 it cost to trade on Polymarket Klarna UK?

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

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.