Samsun: Kenta Miyoshi vs Vadym Ursu

Platform comparison

Market context

Kenta Miyoshi’s match with Vadym Ursu in Samsun is effectively being priced as a near-certain Miyoshi advance, with the crowd at 100% YES and market screens showing Miyoshi around 1.38 against Ursu near 2.77-2.81, which is consistent with a sizeable but not absolute favourite rather than a coin-flip.[2][3] The market is on a quarter-final card at the ATP Challenger Samsun event, and public match pages show no prior head-to-head record between the pair, so the current price is being driven more by relative ranking, recent form and live tournament context than by a known matchup history.[3][11][13]

For traders running this through scripts, bots or conditional orders, the practical angle is to watch the actual match state rather than the pre-match quote, because the settlement rules distinguish between a completed win, a retirement after play begins, and a no-contest outcome.[9] Comparable live listings already show the fixture as active on 31 July, which means the main catalyst is whether play starts on schedule and whether either player retires, as that determines whether the market resolves to a player or to the 50-50 fallback if the match is cancelled or pushed beyond the seven-day window.[5][7][9] In a programmatic workflow, that means polling the tournament feed and live scores for start status, set progression and retirement flags, then updating exposure only when the event is officially in play.

Sources: 1 · 2 · 3 · 4 · 5

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

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 Polymarket Review UK. 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.