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 |
|---|---|
| US Open, Qualification ATP: Henrique Rocha vs Michael Mmoh Set 1 Winner | 100% |
| US Open, Qualification ATP: Henrique Rocha vs Michael Mmoh Set 1 O/U 8.5 | 100% |
| US Open, Qualification ATP: Henrique Rocha vs Michael Mmoh Set 1 O/U 9.5 | 100% |
| US Open, Qualification ATP: Henrique Rocha vs Michael Mmoh Set 1 O/U 10.5 | 100% |
| US Open, Qualification ATP: Henrique Rocha vs Michael Mmoh | 83% |
| US Open, Qualification ATP: Henrique Rocha vs Michael Mmoh Match O/U 22.5 | 66% |
| US Open, Qualification ATP: Henrique Rocha vs Michael Mmoh Set 2 Winner | 63% |
| US Open, Qualification ATP: Henrique Rocha vs Michael Mmoh Set Handicap +/-1.5 | 61% |
| Completed Match | 50% |
| US Open, Qualification ATP: Henrique Rocha vs Michael Mmoh Total Sets: O/U 2.5 | 50% |
| US Open, Qualification ATP: Henrique Rocha vs Michael Mmoh Set 2 O/U 8.5 | 50% |
| US Open, Qualification ATP: Henrique Rocha vs Michael Mmoh Match O/U 21.5 | 50% |
| US Open, Qualification ATP: Henrique Rocha vs Michael Mmoh Set 2 O/U 9.5 | 50% |
| US Open, Qualification ATP: Henrique Rocha vs Michael Mmoh Set 2 O/U 10.5 | 50% |
| US Open, Qualification ATP: Henrique Rocha vs Michael Mmoh Match O/U 23.5 | 50% |
| US Open, Qualification ATP: Henrique Rocha vs Michael Mmoh Game Spread +/-0.5 | 50% |
| US Open, Qualification ATP: Henrique Rocha vs Michael Mmoh Set Handicap +/-1.5 | 9% |
Market context
Traders on decentralised prediction markets give 100% probability to us open, qualification atp: henrique rocha vs michael mmoh. This market refers to the tennis match between Henrique Rocha and Michael Mmoh in the US Open, Qualification ATP, originally scheduled for August 25, 2026 at 11:00AM ET. This market will resolve to '…
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 Best Prediction Markets 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.
UK Frequently Asked Questions
- 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 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.
- What are the best prediction markets for UK traders in 2026?
- For UKGC-regulated markets: Betfair Exchange (sports, politics) and Smarkets (sports, politics, lower commission than Betfair). For broader global event prediction: Polymarket (deepest liquidity, 0% fee, USDC settlement). For US-regulated option: Kalshi (USD, limited UK payment options). Most serious UK traders use a combination of Betfair for regulated sports and Polymarket for broader markets.
Trade US Open, Qualification ATP: Henrique Rocha vs Michae… on Best Prediction Markets UK
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