US Open, Qualification WTA: Alice Tubello vs Priscilla Hon

Platform comparison

Market context

Polymarket is pricing this contract at 0% YES, which on a USDC-settled, Polygon-based conditional token market means the pool is still effectively assigning no visible chance to Alice Tubello advancing, despite the matchup being on the US Open women’s qualifying draw. The market’s settlement mechanics matter here: if a winner is recorded before the deadline, the token resolves to that player; if the match is not completed in time, or is cancelled, it flips to a 50-50 outcome rather than a clean binary win.

The practical read is that a 0% print is often a sign of no active bidding rather than a genuine zero chance. Tubello and Priscilla Hon were both listed in the US Open qualifying draw, with Hon the higher-ranked player in pre-match listings, around WTA 156 against Tubello around WTA 221. In comparable early-round qualifying markets, the favourite usually trades well above zero unless there is a confirmed retirement, walkover, or match-state data not yet reflected in the contract price.

A trader should watch official draw and score updates, court assignments, and any late medical or withdrawal notices before the settlement window closes. Match listings showed the fixture scheduled for 25 August at Court 7, with live scoring pages indicating it had entered play, so the key catalyst is whether an official result is posted before the market’s deadline; if not, the contract can still resolve 50-50 under its rules.

Sources: 1 · 2 · 3 · 4 · 5

Methodology

This page reviews US Open, Qualification WTA: Alice Tubello vs Priscilla Hon 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 Polymarket Scam?, which mirrors the Polymarket order book at 0% fees.

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

Where can I trade this market with the lowest fees?

Polymarket is geo-blocked in the US/UK/EU. The easiest 0%-fee broker into the same order book is Polymarket Scam?. 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.

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%.