US Open, Qualification ATP: Tristan Schoolkate vs Seong-Chan Hong

Platform comparison

Market context

Tristan Schoolkate and Seong-Chan Hong were drawn to meet in the US Open men’s qualifying second round on 26 August, with the match listed for Court 11 and several schedules showing a Wednesday evening slot in New York. The market’s 91% crowd-implied probability points to a strong expectation that the scheduled contest produced a decisive winner rather than a cancellation or unresolved state, which matters because this contract only settles to 50-50 if no winner is determined within the window.

The shape of the price is easier to read against the underlying tennis context than as a pure strength call. Pre-match listings and third-party tennis models had Schoolkate narrowly ahead, while the official draw placed Hong as the lower-ranked entrant and the match was set at hard-court qualifying level, where margins are often thin and upsets are common. The key historical comparison is not a specific head-to-head market line, but the general pattern in qualifying: when both players have already cleared the first round, probabilities can stay elevated for one side even if live conditions are volatile.

For traders, the main catalysts are straightforward: confirmation that the match was actually played, any schedule movement from Court 11, and whether either player advanced from the first round in the form expected by the draw. Because the contract settles in USDC on-chain, the practical risk is less about tennis scoring than about event completion and final official advancement. Broader crypto conditions can still matter at the margin: BTC and ETH spot moves, funding-rate swings, or large exchange flows can affect overall prediction-market liquidity, but they do not change the tennis outcome itself.

Sources: 1 · 2 · 3 · 4 · 5

Methodology

This page reads US Open, Qualification ATP: Tristan Schoolkate vs Seong-Chan Hong on-chain. Polymarket's quote comes directly from the Polygon order book — the only comparable venue with on-chain settlement. Kalshi (USD, off-chain), Betfair (GBP/EUR, off-chain) and Manifold (play-money) are listed alongside for venue context. Every CTA routes to BTC Prediction, which mirrors the Polymarket order book directly.

Resolution & payout

Settlement is on-chain via UMA Optimistic Oracle. A proposer posts the outcome with a bond, a two-hour dispute window opens, then the smart contract lifts winning conditional tokens to 1 USDC and sends payments to holders' wallets automatically. No withdrawal fees beyond Polygon gas.

Off-chain venues (Kalshi, Betfair, Smarkets) settle in local fiat through bank-side clearing — faster than SWIFT, slower than on-chain. Manifold pays no real cash.

UK Frequently Asked Questions

What does a transaction cost on Polygon?

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No, Polymarket operates exclusively in USDC on Polygon. You can bridge BTC to USDC via an exchange or bridge service and deposit on Polygon — typically 10-30 minutes processing time.

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Do I pay tax on prediction market profits in the UK?

UKGC-licensed platform profits (Betfair, Smarkets) are typically tax-free gambling winnings for UK individuals. Polymarket profits involve USDC crypto transactions, which HMRC treats as Capital Gains Tax events. Keep full transaction records and report via Self Assessment if gains exceed £3,000 per tax year.

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