Granby: Murphy Cassone vs Tristan Schoolkate

Platform comparison

Market context

The Granby ATP Challenger match between Murphy Cassone and Tristan Schoolkate, originally set for 13 July 2026, has already concluded with Schoolkate securing a decisive victory. Historical data from their February 2026 encounter confirms Schoolkate’s dominance, having won 6–4, 7–6 in a match where Cassone failed to convert critical break points [1]. This prior result establishes a clear performance baseline, explaining why the prediction market currently implies a 100% probability that Schoolkate advances, with no credible scenario favouring Cassone.

In cross-platform comparisons, sportsbooks and prediction markets align tightly on this outcome, diverging only in resolution mechanics. While Polymarket offers a variant betting Cassone wins by two sets or more—a condition impossible given the match is finished—the primary market on best-prediction-markets.co.uk resolves strictly to the advancing player [2]. Analyst consensus mirrors the 100% implied probability, citing Schoolkate’s ATP ranking of 108 and his superior head-to-head record as decisive factors. No pending announcements or schedule dependencies remain, as the match result is final and the settlement window closes on 20 July 2026.

Traders should note that cancellation or delay clauses are moot; the match was played and completed within the seven-day window, eliminating any 50–50 resolution risk. The only catalyst now is the official confirmation of Schoolkate’s advancement into the next Granby round, which will trigger automatic settlement. Given the absence of ambiguity in the result, the contract functions as a near-arbitrage opportunity for those seeking exposure to a confirmed outcome, with no meaningful divergence between market lines or expert forecasts.

Sources: 1 · 2

Methodology

This page reviews Granby: Murphy Cassone vs Tristan Schoolkate across five venues. The live probability is the Polymarket mid-price, sourced directly from the on-chain Polygon order book; the comparison columns benchmark each venue on fee structure, KYC, settlement currency and payment rails. Every CTA routes to Best Prediction Markets UK, which mirrors the Polymarket order book at 0% fees.

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

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.

Do I need to KYC for this market?

On Polymarket directly, no — it's wallet-based. Intermediary brokers like Best Prediction Markets UK trigger KYC only above $1,500 of lifetime trading volume; under that you trade pseudonymously with a single wallet address.

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.