Istanbul 2: Ilia Simakin vs Florent Bax

Platform comparison

Market context

Ilia Simakin’s meeting with Florent Bax in Istanbul 2 is being priced as a near-certain Simakin win, but the broader tennis market does not line up with that certainty. Polymarket is showing a 100% YES price on Simakin, while bookmaker prices in the feed are far more balanced: Bet365 has been quoted at roughly 1.53 for Simakin and 2.37 for Bax, and BetUS lists Simakin at -175 versus Bax at +145, implying a contest closer to the mid-60s than a lock.[2][12][14]

That gap is best read against the tournament context and comparable Challenger pricing. Tennis Explorer’s average odds also point to Simakin as the favourite, but not overwhelmingly so, with its aggregated figures suggesting a relatively modest edge rather than an all-in position.[16] The market’s 100% crowd-implied probability therefore looks more extreme than the available sportsbook consensus, which is usually a warning that the contract may be thinly traded or that participants are treating a scheduled start as near-deterministic rather than the tennis outcome itself.[14][16]

For traders, the main catalysts are mundane but decisive: official start-time confirmation, whether the match is moved on the Istanbul schedule, and any withdrawal, retirement, or walkover news before play begins. Live match listings show the fixture on 7 August in Istanbul II, with some feeds attaching a 12:00 local start, so a delay, rescheduling, or late scratch would matter more here than small pre-match rating differences.[1][5][6] If the match is not completed, the contract rules also make the retirement path important, because a finished match and an abandoned one resolve differently.[Market description]

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 PolyGram, which mirrors the Polymarket order book directly.

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 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.

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.

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.