Samsun: Kenta Miyoshi vs Constantin Bittoun Kouzmine

Platform comparison

Market context

Polymarket is pricing this Samsun Challenger semi-final at **0% YES** today, which means the contract is effectively flat while the live tennis event is already underway and the market still needs a definitive winner to resolve on-chain in USDC on Polygon through conditional tokens. Sofascore lists Kenta Miyoshi v Constantin Bittoun Kouzmine for 1 August 2026 at 08:00 UTC in Samsun, and Flashscore shows the match in progress with the score level in the third set, so the market can still flip only if one player is confirmed to advance before the settlement rules kick in.[1][4]

For Polymarket users, the nearest comparisons are straightforward: when a tennis match is live and the listed score remains unresolved, the market can stay near zero until the result is formally published, but it also carries a non-trivial tail risk of a void if play is abandoned, postponed beyond seven days, or ends without a winner. The available pre-match pricing on sportsbooks had Miyoshi as a clear favourite, with Sportsbet quoting 1.13 for Miyoshi and 4.90 for Bittoun Kouzmine, which is useful context for reading why a 0% YES print is more likely to reflect market delay, stale liquidity, or a resolution mismatch than a true 50-50 contest.[17]

The main catalysts are procedural rather than speculative: official score feeds, any suspension or retirement notice, and the final ATP/ITF-style match record that determines whether the contract resolves to a named winner or to 50-50 under the no-result rules. Because the market’s settlement window runs well past the scheduled day, traders should watch for the organiser’s posted result, live scoring updates, and any weather or scheduling disruption in Samsun, since a match that starts but is not completed can still end up as a void outcome if the winner is not determined within the deadline.[1][4][6]

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

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.

Do I need to KYC for this market?

On Polymarket directly, no — it's wallet-based. Intermediary brokers like PolyGram 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.