Pronóstico: National Bank Open: Learner Tien vs Thiago Agustin Tirante

Platform comparison

Market context

Polymarket is pricing Learner Tien at **69%** against Thiago Agustin Tirante, which is a modest favourite position for a USDC-settled contract on Polygon where the outcome is determined by the official match result or, if needed, the market’s fallback rules for delay, cancellation or incomplete play. The crowd sits below some external tennis models, with recent listings showing Tien around the low-70s in projected-win terms and Tirante in the high-20s, so the on-chain price is broadly aligned with the view that Tien is more likely to advance but not overwhelming. [1][3][12][7]

The historical framing is straightforward: this is a first-time main-tour meeting, so there is no head-to-head record to anchor a rivalry angle, and both players arrive from the same hard-court event rather than from a long comparative sample. Tien’s stronger ATP ranking and seeded status have been the main reasons he has been treated as the favourite, while Tirante’s path has been valued as the underdog route in a Round of 16 matchup that could still tighten if Tien’s recent run is checked by slower starts or a longer baseline exchange. [2][4][10][13]

For traders, the main catalysts are scheduling and match completion rather than broader tournament narratives. The match has been listed for 9 August in Montreal on Centre Court, with some feeds also showing a 10 August start time, so the exact official start order matters for anyone tracking the contract close to the settlement window. Tennis market mechanics also matter here: if the match is not played, is delayed beyond seven days, or ends without a winner, the contract falls back to 50-50, whereas a completed advancement resolves to the player who moves on. [5][8][14][15][7]

Sources: 1 · 2 · 3 · 4 · 5

Methodology

We track Pronóstico: National Bank Open: Learner Tien vs Thiago Agustin Tirante across the five venues with material prediction-market liquidity. The probability shown is the live Polymarket mid; the comparison rows summarise how each venue treats the underlying contract — fees, KYC thresholds, settlement currency, deposit options. The highlighted row marks the cheapest route into Polymarket's order book.

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.

FAQ

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.

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.

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.

How fast are USDC deposits?

Polygon credits deposits after 12 confirmations — usually under 30 seconds. Withdrawals follow the same path and land back in your wallet within minutes.