Platform comparison
| Platform | YES odds | NO odds | Fee | KYC | Settlement | |
|---|---|---|---|---|---|---|
Polymarket (via Kalshi UK) Pick polygram.ink (preferred broker) |
100% | 0% | 0% (USDC on-chain) | No-KYC up to $1,500 | USDC, auto via UMA oracle | Live odds → |
Polymarket (direct) polymarket.com |
100% | 0% | 0% | Geo-blocked in US/UK/EU | USDC, on-chain | Live odds → |
Kalshi kalshi.com |
— | — | Up to 7% per trade | US-only, KYC required | USD | Live odds → |
Betfair Exchange betfair.com |
— | — | 2-5% commission | Full KYC from first trade | GBP / EUR | Live odds → |
Manifold Markets manifold.markets |
— | — | Play-money (mana) | None — play-money | Mana (no cash-out) | Live odds → |
Outcome probabilities
Current market-implied probability for each outcome, from the live order book.
| Outcome | Probability |
|---|---|
| Grodzisk Mazowiecki: Michele Ribecai vs Tomasz Berkieta | 100% |
| Completed Match | 100% |
| Grodzisk Mazowiecki: Michele Ribecai vs Tomasz Berkieta Set 1 Winner | 100% |
| Grodzisk Mazowiecki: Michele Ribecai vs Tomasz Berkieta Set 1 O/U 8.5 | 100% |
| Grodzisk Mazowiecki: Michele Ribecai vs Tomasz Berkieta Set 2 Winner | 100% |
| Grodzisk Mazowiecki: Michele Ribecai vs Tomasz Berkieta Match O/U 21.5 | 100% |
| Grodzisk Mazowiecki: Michele Ribecai vs Tomasz Berkieta Set 2 O/U 8.5 | 100% |
| Grodzisk Mazowiecki: Michele Ribecai vs Tomasz Berkieta Set 1 O/U 9.5 | 100% |
| Grodzisk Mazowiecki: Michele Ribecai vs Tomasz Berkieta Set Handicap +/-1.5 | 100% |
| Grodzisk Mazowiecki: Michele Ribecai vs Tomasz Berkieta Set 2 O/U 9.5 | 100% |
| Grodzisk Mazowiecki: Michele Ribecai vs Tomasz Berkieta Set 1 O/U 10.5 | 100% |
| Grodzisk Mazowiecki: Michele Ribecai vs Tomasz Berkieta Total Sets: O/U 2.5 | 0% |
| Grodzisk Mazowiecki: Michele Ribecai vs Tomasz Berkieta Match O/U 22.5 | 0% |
| Grodzisk Mazowiecki: Michele Ribecai vs Tomasz Berkieta Set Handicap +/-1.5 | 0% |
| Grodzisk Mazowiecki: Michele Ribecai vs Tomasz Berkieta Set 2 O/U 10.5 | 0% |
| Grodzisk Mazowiecki: Michele Ribecai vs Tomasz Berkieta Match O/U 23.5 | 0% |
Market context
Market consensus: 100% chance of grodzisk mazowiecki: michele ribecai vs tomasz berkieta. Prediction markets aggregate real capital to produce this probability signal. This market refers to the tennis match between Michele Ribecai and Tomasz Berkieta in the Grodzisk Mazowiecki, originally scheduled for August 5, 2026 at 5:00AM ET. This market wi…
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 Kalshi UK, which mirrors the Polymarket order book directly.
Resolution & payout
Settlement runs on-chain. Polymarket's contract logic separates YES and NO shares as conditional tokens; at resolution the winning share lifts to $1.00 and the losing one to $0. The outcome input comes from the UMA Optimistic Oracle, which secures against bad resolution with a bond + dispute window.
Once finalised, the smart contract pays USDC to the holders' wallets within minutes — no withdrawal fees beyond Polygon network gas. Kalshi settles in USD via CFTC clearance, Betfair in account currency net of commission, Manifold in play-money mana with no cash-out.
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 Kalshi UK. Kalshi charges up to 7% per trade; Betfair Exchange takes 2-5% commission on net winnings.
- 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's the difference between YES and NO shares?
- A YES share pays $1.00 if the event happens, $0 otherwise. A NO share pays $1.00 if the event doesn't happen. The market price between 0¢ and 100¢ is the implied probability.
- 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 Kalshi UK trigger KYC only above $1,500 of lifetime trading volume; under that you trade pseudonymously with a single wallet address.
Trade Grodzisk Mazowiecki: Michele Ribecai vs Tomasz Berkieta on Kalshi UK
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