Platform comparison
| Platform | YES odds | NO odds | Fee | KYC | Settlement | |
|---|---|---|---|---|---|---|
Polymarket (via BTC Prediction) Pick polygram.ink (preferred broker) |
100% | 0% | 0% (USDC on-chain) | No-KYC up to $1,500 | USDC, auto via UMA oracle | Open live market → |
Polymarket (direct) polymarket.com |
100% | 0% | 0% | Geo-blocked in US/UK/EU | USDC, on-chain | Open live market → |
Kalshi kalshi.com |
— | — | Up to 7% per trade | US-only, KYC required | USD | Open live market → |
Betfair Exchange betfair.com |
— | — | 2-5% commission | Full KYC from first trade | GBP / EUR | Open live market → |
Manifold Markets manifold.markets |
— | — | Play-money (mana) | None — play-money | Mana (no cash-out) | Open live market → |
Outcome probabilities
Current market-implied probability for each outcome, from the live order book.
| Outcome | Probability |
|---|---|
| Completed Match | 100% |
| ITF M25 Slovenj Gradec Men: Kirill Kivattsev vs Frederic Schlossmann Set 1 O/U 8.5 | 100% |
| ITF M25 Slovenj Gradec Men: Kirill Kivattsev vs Frederic Schlossmann Set 1 Winner | 100% |
| ITF M25 Slovenj Gradec Men: Kirill Kivattsev vs Frederic Schlossmann Total Sets: O/U 2.5 | 100% |
| ITF M25 Slovenj Gradec Men: Kirill Kivattsev vs Frederic Schlossmann Match O/U 21.5 | 100% |
| ITF M25 Slovenj Gradec Men: Kirill Kivattsev vs Frederic Schlossmann Set 1 O/U 9.5 | 100% |
| ITF M25 Slovenj Gradec Men: Kirill Kivattsev vs Frederic Schlossmann Match O/U 22.5 | 100% |
| ITF M25 Slovenj Gradec Men: Kirill Kivattsev vs Frederic Schlossmann Set 1 O/U 10.5 | 100% |
| ITF M25 Slovenj Gradec Men: Kirill Kivattsev vs Frederic Schlossmann Match O/U 23.5 | 100% |
| ITF M25 Slovenj Gradec Men: Kirill Kivattsev vs Frederic Schlossmann | 0% |
| ITF M25 Slovenj Gradec Men: Kirill Kivattsev vs Frederic Schlossmann Set 2 Winner | 0% |
| ITF M25 Slovenj Gradec Men: Kirill Kivattsev vs Frederic Schlossmann Set 2 O/U 8.5 | 0% |
| ITF M25 Slovenj Gradec Men: Kirill Kivattsev vs Frederic Schlossmann Set Handicap +/-1.5 | 0% |
| ITF M25 Slovenj Gradec Men: Kirill Kivattsev vs Frederic Schlossmann Set 2 O/U 9.5 | 0% |
| ITF M25 Slovenj Gradec Men: Kirill Kivattsev vs Frederic Schlossmann Set Handicap +/-1.5 | 0% |
| ITF M25 Slovenj Gradec Men: Kirill Kivattsev vs Frederic Schlossmann Set 2 O/U 10.5 | 0% |
Market context
Kirill Kivattsev, a Russian ITF circuit competitor, faces Frederic Schlossmann in a Men's 25k tournament at Slovenj Gradec, Slovenia on 20 August 2026. The match carries a settlement window through 27 August, allowing seven days for completion before the 50-50 tie resolution triggers. Current on-chain pricing at 0% YES reflects either extreme confidence in Schlossmann or a liquidity desert typical of lower-tier ITF M25 events, where trading volume rarely justifies tight spreads.
ITF M25 matches historically show volatile resolution patterns on-chain due to fixture cancellations, player withdrawals, and weather delays in regional European venues. Slovenj Gradec's August scheduling sits within the European summer circuit's peak, reducing cancellation risk relative to spring or autumn events. However, comparable M25 markets have seen 15–20% of fixtures delayed beyond initial dates or abandoned entirely, which would trigger the 50-50 settlement clause. Traders holding YES positions face material tail risk from administrative postponement rather than match outcome alone.
Catalysts centre on player fitness announcements and ITF tournament updates in early August. Schlossmann's recent ranking trajectory and Kivattsev's current form on the ITF circuit will surface through ATP/WTA-linked databases and tournament draws published by the ITF. The 4:30 AM ET start time suggests a secondary court slot, increasing sensitivity to overnight weather or scheduling conflicts. USDC settlement mechanics mean traders should monitor whether the match reaches completion status before the 27 August deadline, as partial-play scenarios remain unresolved under current market terms.
Methodology
Methodologically this overview focuses on on-chain pricing: Polymarket's live mid comes from the Polygon conditional-token order book and settles automatically in USDC. The other three venues — Kalshi, Betfair, Manifold — sit alongside as off-chain reference points so you can see how the contract translates across regulatory and settlement regimes.
Resolution & payout
Settlement is on-chain via UMA Optimistic Oracle. A proposer posts the outcome with a bond, a two-hour dispute window opens, then the smart contract lifts winning conditional tokens to 1 USDC and sends payments to holders' wallets automatically. No withdrawal fees beyond Polygon gas.
Off-chain venues (Kalshi, Betfair, Smarkets) settle in local fiat through bank-side clearing — faster than SWIFT, slower than on-chain. Manifold pays no real cash.
UK Frequently Asked Questions
- What does a transaction cost on Polygon?
- Polygon gas is typically under $0.01 per transaction. A full trade cycle (Approve + Order + Fill) totals around $0.03 — compared to $5-50 on Ethereum mainnet.
- Can I use Bitcoin directly?
- No, Polymarket operates exclusively in USDC on Polygon. You can bridge BTC to USDC via an exchange or bridge service and deposit on Polygon — typically 10-30 minutes processing time.
- Is Polymarket legal in the UK?
- Polymarket is accessible to UK traders but is not UKGC-licensed. It operates under US CFTC jurisdiction. UK residents face no domestic legal prohibition on using it, but UKGC consumer protections do not apply. For UKGC-regulated alternatives, Betfair Exchange and Smarkets offer similar prediction-style markets.
- Do I pay tax on prediction market profits in the UK?
- UKGC-licensed platform profits (Betfair, Smarkets) are typically tax-free gambling winnings for UK individuals. Polymarket profits involve USDC crypto transactions, which HMRC treats as Capital Gains Tax events. Keep full transaction records and report via Self Assessment if gains exceed £3,000 per tax year.
- How do I deposit on Polymarket from the UK?
- UK traders typically fund Polymarket via Coinbase UK, Kraken or Revolut — buying USDC with GBP and transferring to a Polygon-compatible wallet (MetaMask, Coinbase Wallet). Polymarket's onboarding walks you through the bridging process. Typical GBP-to-USDC conversion costs 0.5–1%.
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