Platform comparison
| Platform | YES odds | NO odds | Fee | KYC | Settlement | |
|---|---|---|---|---|---|---|
Polymarket (via Polymarket Legal UK) Pick polygram.ink (preferred broker) |
100% | 0% | 0% (USDC on-chain) | No-KYC up to $1,500 | USDC, auto via UMA oracle | Trade this market → |
Polymarket (direct) polymarket.com |
100% | 0% | 0% | Geo-blocked in US/UK/EU | USDC, on-chain | Trade this market → |
Kalshi kalshi.com |
— | — | Up to 7% per trade | US-only, KYC required | USD | Trade this market → |
Betfair Exchange betfair.com |
— | — | 2-5% commission | Full KYC from first trade | GBP / EUR | Trade this market → |
Manifold Markets manifold.markets |
— | — | Play-money (mana) | None — play-money | Mana (no cash-out) | Trade this market → |
Outcome probabilities
Current market-implied probability for each outcome, from the live order book.
| Outcome | Probability |
|---|---|
| Completed Match | 100% |
| Samsun: Kenta Miyoshi vs Constantin Bittoun Kouzmine Set 1 Winner | 100% |
| Samsun: Kenta Miyoshi vs Constantin Bittoun Kouzmine Set 2 O/U 8.5 | 100% |
| Samsun: Kenta Miyoshi vs Constantin Bittoun Kouzmine Total Sets: O/U 2.5 | 100% |
| Samsun: Kenta Miyoshi vs Constantin Bittoun Kouzmine Match O/U 21.5 | 100% |
| Samsun: Kenta Miyoshi vs Constantin Bittoun Kouzmine Set 1 O/U 8.5 | 100% |
| Samsun: Kenta Miyoshi vs Constantin Bittoun Kouzmine Set 2 O/U 9.5 | 100% |
| Samsun: Kenta Miyoshi vs Constantin Bittoun Kouzmine Set 1 O/U 9.5 | 100% |
| Samsun: Kenta Miyoshi vs Constantin Bittoun Kouzmine Match O/U 22.5 | 100% |
| Samsun: Kenta Miyoshi vs Constantin Bittoun Kouzmine Match O/U 23.5 | 100% |
| Samsun: Kenta Miyoshi vs Constantin Bittoun Kouzmine | 0% |
| Samsun: Kenta Miyoshi vs Constantin Bittoun Kouzmine Set 2 Winner | 0% |
| Samsun: Kenta Miyoshi vs Constantin Bittoun Kouzmine Set Handicap +/-1.5 | 0% |
| Samsun: Kenta Miyoshi vs Constantin Bittoun Kouzmine Set Handicap +/-1.5 | 0% |
| Samsun: Kenta Miyoshi vs Constantin Bittoun Kouzmine Set 2 O/U 10.5 | 0% |
| Samsun: Kenta Miyoshi vs Constantin Bittoun Kouzmine Set 1 O/U 10.5 | 0% |
Market context
Kenta Miyoshi and Constantin Bittoun Kouzmine are meeting at the Samsun Challenger, a match that was already live on scoreboards and listed as a singles semi-final on outdoor hard courts, with the players separated by only a modest ranking gap. Public odds screens had Miyoshi around ATP No. 602 and Bittoun Kouzmine around No. 507, while one market feed also showed Miyoshi as the crowd-lead despite that ranking deficit, which is consistent with a relatively tight, form-driven contest rather than a clear mismatch.[3][4][5]
The historical frame is limited because there is no recorded head-to-head between them, so the current 57% implied probability mainly reflects recent results, not direct matchup evidence.[2][5] Miyoshi’s 2026 hard-court record has been stronger on one stats feed, and both players were listed with winning runs in their recent matches, which helps explain why the market is not pricing this as close to a coin flip.[1][15] For accessibility, the relevant market venue is the same category that can be offered under more permissive onboarding, where “no-KYC up to $1,500” generally means smaller positions may be available without full identity verification, but larger activity can still trigger checks; that is a platform access rule, not a guarantee against local legal constraints.
For traders, the main catalysts are straightforward: confirm that the semi-final actually starts, watch for any retirement or suspension once play begins, and check whether the official tournament schedule changes, because a cancellation or a delay beyond seven days would push settlement to 50-50 under the market rules. Regulatory context also matters here: German GlüStV rules can affect whether a sports-prediction product is treated as permissible gambling activity for German users, while US CFTC reach is relevant if a platform is considered to be offering event contracts to US persons, even when the underlying event is a non-US tennis match.
Methodology
This overview of Samsun: Kenta Miyoshi vs Constantin Bittoun Kouzmine reviews the four comparable platforms from a regulatory perspective: which is accessible in your jurisdiction, where KYC kicks in, how the platform is classified by your country of residence. Live probability is the Polymarket mid; comparison columns show regulatory status, KYC thresholds and settlement options for each platform.
Resolution & payout
On Polymarket, resolution runs on-chain via UMA Optimistic Oracle. USDC payout is instant and automatic, with no KYC. Tax treatment depends on your jurisdiction — in the US, gains are usually ordinary income; in the UK, often capital gains. Consult a tax professional for your situation.
FAQ
- Do I need to KYC for Polymarket Legal UK?
- Not for lifetime trading volume under $1,500. Above that threshold, a quick KYC flow kicks in — ID, selfie, approximately 5-10 minutes. The threshold matches FATF travel standards for unregulated crypto platforms.
- How are winnings taxed?
- Tax treatment varies by jurisdiction. In most countries, prediction market gains are treated as ordinary income or capital gains. We cannot provide tax advice — consult a tax professional for your specific situation.
- What happens during a tax audit?
- You're responsible for documenting your trades. Polymarket Legal UK exports a full transaction history (CSV/PDF) for tax reporting. In an audit you'll need to present these documents.
- Are prediction markets gambling?
- Legally unclear in most jurisdictions. Some interpretations classify them as wagering (gambling regulation applies), others as derivatives (financial regulation applies). There's no global precedent specifically for on-chain prediction markets.
- Is there a withdrawal cap?
- No platform-side cap. You can withdraw any amount provided KYC is complete. SEPA bank withdrawals over €15,000 trigger additional anti-money-laundering checks (statutory obligation for all platforms).
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