Istanbul 2: Lucas Poullain vs Ilia Simakin

Platform comparison

Market context

Lucas Poullain against Ilia Simakin is being priced very differently across venues: the prediction market is at **100% YES**, while recent match preview markets and sportsbook-style listings have leaned towards **Simakin** as the favoured side. Tennis Tonic’s pre-match preview put Simakin at **1.52** and Poullain at **2.33**, and its own model called Simakin the pick in three sets; Tennistemple’s predictions trend also skewed to Simakin at **81.6%** versus **18.4%** for Poullain.[17][13] That makes the crowd-implied reading on this contract unusually extreme, especially given that third-party preview sites were not treating Poullain as the obvious favourite before the match.[17][13]

The main context is that both players came in with broadly similar hard-court resumes, but Simakin’s overall ranking edge was clear at **297** versus Poullain’s **500**, and Simakin also had the stronger 2026 win-loss record on hard courts in the available previews.[1][2] Their Istanbul match already went to a deciding third set, and the live match data showed Poullain recovering after dropping the opener, which is the kind of in-match volatility that can make pre-match probability snapshots look stale if a market updates quickly.[7][1] For traders, the key dependency is whether the official result is finalised within the settlement rules: the contract resolves to a **50-50** outcome if the match is cancelled, tied, or delayed more than seven days past the scheduled date without a winner, while a completed result is determined by which player advances.[0]

Sources: 1 · 2 · 3 · 4 · 5

Methodology

This page reviews Istanbul 2: Lucas Poullain vs Ilia Simakin 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 PolyGram, which mirrors the Polymarket order book at 0% fees.

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 PolyGram. 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.

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.