National Bank Open: Learner Tien vs Thiago Agustin Tirante

Platform comparison

Market context

Polymarket is pricing Learner Tien at **69%** to advance, with the contract settling in **USDC on Polygon** through conditional tokens, so the market is effectively asking whether Tien wins this specific Montreal match or, if the event is not completed under the rules, whether it falls back to a 50-50 outcome. The live trading level is below some tennis-model projections, which puts a modest discount on Tien’s chance rather than a full steam towards the favourite. [1][10]

That price sits in a familiar range for a seeded player facing an unseeded opponent on hard court, especially when the seed has already handled higher-quality opposition in the same draw. Tournament listings have Tien as the No. 12 seed and world No. 19, while Tirante is unseeded and around No. 65, and the head-to-head is 0-0. Comparable preview models and bookmaker-style odds have generally made Tien a clear favourite, though not overwhelmingly so, which supports a market in the high-60s rather than a binary near-lock. [2][3][6][9][12]

For traders, the key catalysts are whether the match starts on schedule, whether the confirmed surface and order of play remain unchanged, and whether any late withdrawal or medical retirement creates an advancement scenario that overrides the on-court score under Polymarket’s rules. Current match listings place the contest at Centre Court in Montréal, with start times circulating around 17:40 UTC to 19:40 local-feed listings, so any delay or rescheduling can matter more here than in a standard straight-set price. Because the market only resolves to the winner if a winner is actually determined, a walkover, cancellation, or a delay beyond seven days would push it to 50-50 instead. [4][7][11][13][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 Kalshi UK, 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

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 Kalshi UK. Kalshi charges up to 7% per trade; Betfair Exchange takes 2-5% commission on net winnings.

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.

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%.