Pronóstico: Granby: Justin Boulais vs Zhizhen Zhang

Platform comparison

Market context

The Granby tournament will host a first-round match between Canadian prospect Justin Boulais and Chinese player Zhizhen Zhang on 13 July 2026. Polymarket currently prices this contract at 100% YES for Boulais, reflecting either exceptionally strong conviction in his advancement or minimal liquidity testing the market's true valuation. The settlement window extends to 20 July, allowing a seven-day buffer for delays or rescheduling before the contract resolves to a 50-50 split.

Boulais, competing on home soil in Quebec, carries the typical advantages of a Canadian player in a domestic event—familiarity with courts, reduced travel fatigue, and local crowd support. Zhang, ranked lower on the ATP circuit, has shown inconsistency across different surfaces and tournament levels. Historical precedent suggests home-nation players in lower-tier events (Granby sits outside the ATP 500 tier) advance roughly 65–75% of the time against lower-ranked opponents, though this varies significantly by individual form and head-to-head records.

Traders should monitor ATP rankings updates and any injury reports in the fortnight before 13 July, as both players may compete in warm-up events that could affect fitness or confidence. Court surface conditions at Granby—typically hard courts—favour baseline consistency over serve-and-volley play, a factor that may advantage Boulais if he has trained specifically for the event. The 100% price suggests minimal uncertainty is currently priced in; any late withdrawal, weather-related postponement beyond the seven-day window, or unexpected ranking shifts could trigger significant repricing before settlement.

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 Polymarket Qué Es, which mirrors the Polymarket order book directly.

Resolution & payout

Polymarket-based markets settle through the UMA Optimistic Oracle on Polygon. A proposer submits the outcome, a two-hour challenge window opens, and unchallenged proposals finalise the resolution. Payouts settle automatically in USDC the moment the result is final — no bookmaker, no delay.

Kalshi-based markets settle in USD via the CFTC-regulated clearinghouse. Betfair Exchange settles in GBP/EUR net of commission. Manifold is play-money and does not pay out real funds.

FAQ

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 Qué Es. 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.

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.

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.