National Bank Open: Alexei Popyrin vs Thiago Agustin Tirante

Platform comparison

Market context

Polymarket is pricing **Alexei Popyrin** at 56% and **Thiago Agustín Tirante** at 44% on the USDC, Polygon contract, so the market is only modestly leaning to the Australian rather than treating him as a clear favourite. The resolution is mechanical: the conditional token pays out to the player who advances, with a 50-50 fallback if the match is not played, ends level, or is delayed more than seven days without a winner.

That pricing sits close to external pre-match reads. Tennis.com listed Popyrin at 54% projected winner, while TennisTemple’s live comments snapshot showed a similar 58%-42% split, and both sources frame this as a tight round-three match rather than a mismatch.[1][9] The pairing is also a first meeting on the main tour, so there is no head-to-head history to anchor trader expectations.[5][7] Popyrin’s route into the market also matters: Tennis DB and the National Bank Open site both list the contest as a hard-court third-round match in Montréal, which usually rewards first-strike tennis and serving efficiency.[3][4]

For traders, the main catalysts are basic but important: whether the match remains on the published schedule, whether either player is pulled from the draw, and whether play starts cleanly enough to avoid the contract’s 50-50 fallback.[3][12] The Polymarket listing itself indicates notable interest and liquidity in a live sports contract, so any order of play change, medical timeout-related retirement, or weather delay could matter more than small pre-match model differences.[13]

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 PolyGram, 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.

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.

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.

How reliable are the quoted odds?

The YES/NO percentages are the live mid-prices of the Polymarket order book. On deep markets they move every few seconds; on thinner ones you'll see short plateaus.