Newport: Jacob Fearnley vs Stefan Kozlov

Platform comparison

Market context

Jacob Fearnley, the British Challenger hopeful, faces American Stefan Kozlov in Newport’s grass-court singles, a match originally set for 9 July 2026 at 6:05 PM ET. The crowd-implied probability sits at 66% YES for Fearnley advancing, reflecting strong consensus around the home favourite. Historically, grass-court Challengers in Newport have favoured players with recent grass wins; Fearnley’s 6–4 record on grass in 2026[2] aligns with this pattern, whereas Kozlov lacks comparable surface data. Past cases like Mark Lajal’s narrow loss to Fearnley on the same venue[2] suggest Fearnley’s edge in tight three-set scenarios, framing the 66% as grounded rather than inflated.

Traders should monitor live serve metrics and first-set outcomes, as Newport’s fast grass often amplifies early momentum. Kozlov’s recent form shows volatility, including a 3–6, 6–3 live loss to Johns[2], while Fearnley’s 7–5, 3–6, 6–1 win over an unnamed opponent on 8 July[4] indicates resilience. A contrarian angle lies in Kozlov’s underpriced 3.85 odds for a straight-set win[10], offering value if Fearnley’s serve falters under pressure. No major schedule announcements are pending, but real-time updates from ATP Tour[4] and Sofascore[1] will clarify any delays or cancellations before the 2026-07-16 settlement window closes.

Sources: 1 · 2 · 3 · 4 · 5

Methodology

This page reviews Newport: Jacob Fearnley vs Stefan Kozlov 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 Who Will Win, which mirrors the Polymarket order book at 0% fees.

Resolution & payout

At resolution the UMA oracle takes over: a proposer posts the outcome with a bond, any token holder can dispute within two hours. Without dispute the result is accepted and the smart contract distributes USDC instantly.

On Kalshi (CFTC-regulated) resolution runs through their in-house clearing engine in USD. Betfair Exchange settles after match end in the account's local currency. Manifold pays no cash — only its in-platform "mana" currency.

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.

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.

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.