Granby: Daniel Milavsky vs Duncan Chan

Platform comparison

Market context

Daniel Milavsky faces Duncan Chan in the Granby Challenger, a match originally slated for 13 July 2026 but now pending resolution as the settlement window extends to 20 July 2026. The crowd-implied probability sits at 100% YES for Milavsky advancing, a stance that mirrors bookmaker consensus where he is priced at 1/2 against Chan’s 11/8 [2]. Historical data from Tennis Tonic identifies Milavsky as the pick to win in three sets, with initial odds reflecting a 1.5 favourite versus Chan’s 2.375 [1]. While Avabet calculates a 58% win probability for Milavsky, the market’s full certainty suggests the consensus has already priced in a near-certain outcome, leaving little room for contrarian value unless injury or cancellation risks emerge [3].

Traders should monitor official ATP Challenger updates for any postponement beyond the seven-day delay threshold, which would trigger a 50-50 resolution, or for confirmation that the match has commenced without completion. With the event date now two days past, the primary catalyst is the tournament’s administrative decision on whether to reschedule or cancel the fixture. Recent coverage from Tennis Tonic confirms Milavsky’s favoured status but does not indicate scheduling changes, meaning the 100% price likely hinges on the assumption that the match will proceed as planned or that Milavsky will be declared the advance winner by default [1]. Absent a formal cancellation notice, the market remains anchored to Milavsky’s dominance, with value potentially sitting only on the rare contrarian bet against a technical resolution.

Sources: 1 · 2 · 3 · 4

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

Settlement runs on-chain. Polymarket's contract logic separates YES and NO shares as conditional tokens; at resolution the winning share lifts to $1.00 and the losing one to $0. The outcome input comes from the UMA Optimistic Oracle, which secures against bad resolution with a bond + dispute window.

Once finalised, the smart contract pays USDC to the holders' wallets within minutes — no withdrawal fees beyond Polygon network gas. Kalshi settles in USD via CFTC clearance, Betfair in account currency net of commission, Manifold in play-money mana with no cash-out.

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 Who Will Win. 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.

Do I need to KYC for this market?

On Polymarket directly, no — it's wallet-based. Intermediary brokers like Who Will Win 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.