Platform comparison
| Platform | YES odds | NO odds | Fee | KYC | Settlement | |
|---|---|---|---|---|---|---|
Polymarket (via Best Prediction Markets UK) Pick polygram.ink (preferred broker) |
100% | 0% | 0% (USDC on-chain) | No-KYC up to $1,500 | USDC, auto via UMA oracle | View on Polymarket → |
Polymarket (direct) polymarket.com |
100% | 0% | 0% | Geo-blocked in US/UK/EU | USDC, on-chain | View on Polymarket → |
Kalshi kalshi.com |
— | — | Up to 7% per trade | US-only, KYC required | USD | View on Polymarket → |
Betfair Exchange betfair.com |
— | — | 2-5% commission | Full KYC from first trade | GBP / EUR | View on Polymarket → |
Manifold Markets manifold.markets |
— | — | Play-money (mana) | None — play-money | Mana (no cash-out) | View on Polymarket → |
Outcome probabilities
Current market-implied probability for each outcome, from the live order book.
| Outcome | Probability |
|---|---|
| Completed Match | 100% |
| Iasi: Cezar Cretu vs Gustavo Heide Set 1 Winner | 100% |
| Iasi: Cezar Cretu vs Gustavo Heide Total Sets: O/U 2.5 | 100% |
| Iasi: Cezar Cretu vs Gustavo Heide Match O/U 21.5 | 100% |
| Iasi: Cezar Cretu vs Gustavo Heide Set 2 O/U 8.5 | 100% |
| Iasi: Cezar Cretu vs Gustavo Heide Set 2 O/U 9.5 | 100% |
| Iasi: Cezar Cretu vs Gustavo Heide Match O/U 22.5 | 100% |
| Iasi: Cezar Cretu vs Gustavo Heide Set 2 O/U 10.5 | 100% |
| Iasi: Cezar Cretu vs Gustavo Heide Match O/U 23.5 | 100% |
| Iasi: Cezar Cretu vs Gustavo Heide | 0% |
| Iasi: Cezar Cretu vs Gustavo Heide Set 1 O/U 8.5 | 0% |
| Iasi: Cezar Cretu vs Gustavo Heide Set 2 Winner | 0% |
| Iasi: Cezar Cretu vs Gustavo Heide Set Handicap +/-1.5 | 0% |
| Iasi: Cezar Cretu vs Gustavo Heide Set 1 O/U 9.5 | 0% |
| Iasi: Cezar Cretu vs Gustavo Heide Set Handicap +/-1.5 | 0% |
| Iasi: Cezar Cretu vs Gustavo Heide Set 1 O/U 10.5 | 0% |
Market context
Market consensus: 100% chance of iasi: cezar cretu vs gustavo heide. Prediction markets aggregate real capital to produce this probability signal. This market refers to the tennis match between Cezar Cretu and Gustavo Heide in the Iasi, originally scheduled for July 9, 2026 at 3:00AM ET. This market will resolve to 'Cezar Cr…
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
At resolution the UMA oracle takes over: a proposer posts the outcome with a bond, any token holder can dispute within two hours. Without dispute the result is accepted and the smart contract distributes USDC instantly.
On Kalshi (CFTC-regulated) resolution runs through their in-house clearing engine in USD. Betfair Exchange settles after match end in the account's local currency. Manifold pays no cash — only its in-platform "mana" currency.
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 Best Prediction Markets 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.
- 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.
- Do I need to KYC for this market?
- On Polymarket directly, no — it's wallet-based. Intermediary brokers like Best Prediction Markets UK trigger KYC only above $1,500 of lifetime trading volume; under that you trade pseudonymously with a single wallet address.
Trade Iasi: Cezar Cretu vs Gustavo Heide on Best Prediction Markets UK
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