National Bank Open: Duncan Chan vs Thiago Agustin Tirante

Platform comparison

Market context

Duncan Chan faces Thiago Agustín Tirante in the first round in Montréal, and the market is effectively asking whether the Canadian qualifier can upset the ATP No. 64. Multiple pre-match listings show Tirante as the clear favourite, with tennis.com giving him a 73% projected win chance and other price screens implying a similar gap, while Chan is listed around ATP No. 601.[1][2][11]

That gap is the main historical frame for reading a 0% crowd-implied probability: markets in ATP Masters first rounds usually only drift to extreme prices when the ranking mismatch is large and there is no prior head-to-head to offset it. Here, the record is 0-0 between the pair, so the baseline comes from class and surface rather than any direct matchup evidence.[3][5][14] The contract also settles in USDC, so the on-chain price can move on broader crypto risk sentiment even if the tennis edge remains the same; a weaker BTC or ETH tape can reduce marginal appetite for long-dated or illiquid positions without changing the underlying result.

The main catalysts are simple: whether the match is played on schedule, whether either player withdraws, and whether tournament officials keep the first-round slot intact. The National Bank Open listed Chan-Tirante in the Montréal draw and, on published schedules, the match was set for 3 August at 15:00 UTC / 10:00 ET, with multiple live-score services showing it as upcoming or recently scheduled rather than completed.[7][8][13] For a market with a 7-day delay clause, traders should watch official draw updates and match-centre status first, then any late fitness, weather or scheduling changes that could push the contract towards a 50-50 resolution if play does not start or finish in time.[6][13]

Sources: 1 · 2 · 3 · 4 · 5

Methodology

Methodologically this overview focuses on on-chain pricing: Polymarket's live mid comes from the Polygon conditional-token order book and settles automatically in USDC. The other three venues — Kalshi, Betfair, Manifold — sit alongside as off-chain reference points so you can see how the contract translates across regulatory and settlement regimes.

Resolution & payout

Settlement is on-chain via UMA Optimistic Oracle. A proposer posts the outcome with a bond, a two-hour dispute window opens, then the smart contract lifts winning conditional tokens to 1 USDC and sends payments to holders' wallets automatically. No withdrawal fees beyond Polygon gas.

Off-chain venues (Kalshi, Betfair, Smarkets) settle in local fiat through bank-side clearing — faster than SWIFT, slower than on-chain. Manifold pays no real cash.

FAQ

What are crypto prediction markets?

Crypto prediction markets are on-chain smart contracts where you buy YES or NO shares on a future crypto event (e.g. "BTC above $100k by year-end"). The market price between 0¢ and 100¢ is the implied probability.

What does a transaction cost on Polygon?

Polygon gas is typically under $0.01 per transaction. A full trade cycle (Approve + Order + Fill) totals around $0.03 — compared to $5-50 on Ethereum mainnet.

Can I use Bitcoin directly?

No, Polymarket operates exclusively in USDC on Polygon. You can bridge BTC to USDC via an exchange or bridge service and deposit on Polygon — typically 10-30 minutes processing time.

How does UMA secure the resolution?

The UMA Optimistic Oracle uses a bond system: a proposer posts a bond, a two-hour challenge window opens. On dispute the losing side forfeits the bond — financial incentive for honest resolution.

Are crypto prediction markets taxable in the US?

In the US, prediction market gains are typically treated as ordinary income or short-term capital gains depending on holding period. Consult a tax professional for your specific situation — we cannot provide tax advice.