Istanbul 2: Antoine Ghibaudo vs Ilia Simakin

Platform comparison

Market context

Polymarket is pricing the Antoine Ghibaudo v Ilia Simakin contract at **0% YES** on USDC-settled, Polygon-based conditional tokens, which means the market is effectively saying Ghibaudo’s advancement is not currently expected. For a trader, that does not mean the outcome is impossible; it means there is no visible information in price to pay up for a Ghibaudo win, so any fresh evidence on the draw, fitness or start time would matter disproportionately.

The historical frame is thin on direct head-to-head signal, so the cleaner read comes from player level. Ghibaudo is a young French player with a career-high ATP singles ranking of No. 287 and a current ranking in the low 300s, with results spread mostly across the challenger and ITF tiers[1][3]. That profile usually implies volatile pricing against similarly placed opponents, especially when the market is relying on a single scheduled meeting rather than a longer run of form[6][11].

The main catalysts are procedural rather than glamorous: official order-of-play updates, any late withdrawal or walkover, and whether the match is actually played within the settlement window. Because the contract pays out on who advances, not who wins a set, a retirement after the match begins can still decide the market if one player is awarded advancement; if the fixture is not completed and no winner is determined within seven days of the scheduled date, it resolves 50-50. Traders also need to watch tournament communications and live score reporting, because a same-day delay or rescheduling can change whether the contract settles on a player result or falls back to the tie rule.

Sources: 1 · 2 · 3 · 4 · 5

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 Kalshi UK, which mirrors the Polymarket order book directly.

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.

UK Frequently Asked Questions

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.

Is Polymarket legal in the UK?

Polymarket is accessible to UK traders but is not UKGC-licensed. It operates under US CFTC jurisdiction. UK residents face no domestic legal prohibition on using it, but UKGC consumer protections do not apply. For UKGC-regulated alternatives, Betfair Exchange and Smarkets offer similar prediction-style markets.

Do I pay tax on prediction market profits in the UK?

UKGC-licensed platform profits (Betfair, Smarkets) are typically tax-free gambling winnings for UK individuals. Polymarket profits involve USDC crypto transactions, which HMRC treats as Capital Gains Tax events. Keep full transaction records and report via Self Assessment if gains exceed £3,000 per tax year.

How do I deposit on Polymarket from the UK?

UK traders typically fund Polymarket via Coinbase UK, Kraken or Revolut — buying USDC with GBP and transferring to a Polygon-compatible wallet (MetaMask, Coinbase Wallet). Polymarket's onboarding walks you through the bridging process. Typical GBP-to-USDC conversion costs 0.5–1%.