Granby: Blaise Bicknell vs Murphy Cassone

Platform comparison

Market context

The Granby Challenger Round of 16 between Blaise Bicknell and Murphy Cassone, originally slated for 15 July, is currently interrupted after both players secured one set each, with the match now in a decisive third set where Cassone leads 15–0 in points. This live interruption has collapsed the market’s YES probability for Bicknell to 0%, reflecting the immediate on-court reality rather than pre-match form.

Historically, prediction markets on interrupted Challenger matches resolve sharply once play halts mid-set; when a player holds a commanding lead in the deciding set (as Cassone does here), the market typically locks in that outcome unless a formal cancellation occurs. Comparable cases from 2024–2025 Granby and similar North American Challengers show that 0% probabilities for the trailing player persist unless the match is officially abandoned, which would trigger the 50–50 settlement clause.

Traders should monitor the official tournament announcement for a restart or cancellation within the 7-day window, as the settlement depends on whether a winner is determined before 22 July 2026. Cassone’s initial odds of 1.39 versus Bicknell’s 2.72 already favoured him, and the live scoreline reinforces that edge; no new player announcements are expected, but the tournament’s operational status remains the sole catalyst. Tennis Tonic’s pre-match pick for Cassone to win in three sets aligns with the current trajectory, though the market now hinges entirely on the match’s completion status [5].

Sources: 1 · 2 · 3 · 4 · 5

Methodology

Methodologically we separate two layers: the live probability (Polymarket mid-price) and the platform attributes (fee, KYC, settlement currency, payment rails). That keeps the comparison honest — a single canonical probability across the row, with the venue-by-venue trade-offs spelt out in the columns next to it.

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

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.

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.