US Open, Qualification ATP: Zsombor Piros vs Daniil Glinka

Platform comparison

Market context

Polymarket is already treating this as effectively a done deal, with the contract priced at 100% YES, even though settlement still depends on the on-court outcome or, failing that, whether the match is completed by the market’s deadline. In practical terms, that means the main risk for users is not the expected winner but a procedural one: if play never takes place, or no result is recorded in time, the market can still fall back to 50-50.

Piros and Glinka were scheduled for US Open qualifying on 26 August, with multiple schedules listing the tie on Court 15 at about 3:30pm ET, and qualifying at Flushing Meadows running across 24–27 August as a three-win route into the main draw.[2][3][5] That frame matters because qualifying draws can shift through delays, walkovers and court re-orderings, so the contract is more sensitive to official completion than to pre-match narrative.

For a Polymarket user, the useful comparisons are straightforward: the market is about whether Zsombor Piros advances against Daniil Glinka, not about who “should” win on paper. Tennis coverage also showed Piros as the projected favourite before play, which helps explain why the crowd has pushed the contract to the ceiling, but the on-chain position still settles only when the result is final and reflected on the platform’s terms.[1][2][10]

Sources: 1 · 2 · 3 · 4 · 5

Methodology

This page is a comparison snapshot: one live quote, four reference venues with their key attributes, and a single execution path — every trade button routes to Polymarket Scam?, which mirrors the Polymarket order book directly.

Resolution & payout

At resolution the UMA oracle takes over: a proposer posts the outcome with a bond, any token holder can dispute within two hours. Without dispute the result is accepted and the smart contract distributes USDC instantly.

On Kalshi (CFTC-regulated) resolution runs through their in-house clearing engine in USD. Betfair Exchange settles after match end in the account's local currency. Manifold pays no cash — only its in-platform "mana" currency.

UK Frequently Asked Questions

Is this market available outside the US?

Polymarket itself is geo-blocked in the US/UK/EU. Always check the legal status of prediction markets in your jurisdiction before trading.

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.

Is Polymarket legal in the UK?

Polymarket is accessible to UK traders but is not UKGC-licensed. It operates under US CFTC jurisdiction. UK residents face no domestic legal prohibition on using it, but UKGC consumer protections do not apply. For UKGC-regulated alternatives, Betfair Exchange and Smarkets offer similar prediction-style markets.

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.

How do I deposit on Polymarket from the UK?

UK traders typically fund Polymarket via Coinbase UK, Kraken or Revolut — buying USDC with GBP and transferring to a Polygon-compatible wallet (MetaMask, Coinbase Wallet). Polymarket's onboarding walks you through the bridging process. Typical GBP-to-USDC conversion costs 0.5–1%.