Cincinnati Open, Qualification: Oksana Selekhmeteva vs Elizabeth Mandlik

Platform comparison

Market context

Polymarket is pricing **Oksana Selekhmeteva vs Elizabeth Mandlik** at **100% YES** on the USDC-settled, Polygon-based contract, so the market is currently behaving as if a Selekhmeteva advance is already a certainty. For users, the practical question is not the abstract match-up but whether the conditional token still has any residual settlement risk left once exchange and tour updates are reflected in the event feed. [7]

The pricing is consistent with the live match record now available from tennis results providers, which show Selekhmeteva and Mandlik already having played this Cincinnati qualifying match, with Selekhmeteva listed as the winner in one official match summary and Mandlik leading in some live-score snapshots before completion. The key comparable here is that once a pre-match or in-play tennis market has a confirmed winner, the contract usually trades near the final outcome rather than the pre-match ranking gap; this match also had no prior head-to-head, so the price would have been driven more by event status than history. [13][1][11]

For traders, the catalysts are operational rather than sporting: WTA score updates, any correction to the official match result, and the market’s own resolution rule if a winner is later overturned or the match is reclassified. The Polymarket description is clear that if a match begins and a player advances via retirement, default or disqualification, the advancing player resolves the contract, while a pre-start walkover is 50-50; that makes official tournament status the main dependency rather than the on-court scoreline alone. [7][3]

Sources: 1 · 2 · 3 · 4 · 5

Methodology

This page reviews Cincinnati Open, Qualification: Oksana Selekhmeteva vs Elizabeth Mandlik 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 PolyGram, which mirrors 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.

UK Frequently Asked Questions

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.

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%.