Platform comparison
| Platform | YES odds | NO odds | Fee | KYC | Settlement | |
|---|---|---|---|---|---|---|
Polymarket (via Best Prediction Markets UK) Pick polygram.ink (preferred broker) |
72% | 28% | 0% (USDC on-chain) | No-KYC up to $1,500 | USDC, auto via UMA oracle | View on Polymarket → |
Polymarket (direct) polymarket.com |
72% | 28% | 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 ATP: Denis Shapovalov vs Luca Van Assche Set 1 O/U 8.5 | 72% |
| US Open ATP: Denis Shapovalov vs Luca Van Assche Total Sets: O/U 3.5 | 66% |
| US Open ATP: Denis Shapovalov vs Luca Van Assche | 59% |
| US Open ATP: Denis Shapovalov vs Luca Van Assche Set 1 Winner | 56% |
| US Open ATP: Denis Shapovalov vs Luca Van Assche Set 2 Winner | 56% |
| US Open ATP: Denis Shapovalov vs Luca Van Assche Set 3 Winner | 56% |
| US Open ATP: Denis Shapovalov vs Luca Van Assche Match O/U 36.5 | 53% |
| US Open ATP: Denis Shapovalov vs Luca Van Assche Set 1 O/U 9.5 | 53% |
| US Open ATP: Denis Shapovalov vs Luca Van Assche Game Spread +/-2.5 | 52% |
| Completed Match | 50% |
| US Open ATP: Denis Shapovalov vs Luca Van Assche Set 2 O/U 8.5 | 50% |
| US Open ATP: Denis Shapovalov vs Luca Van Assche Set 2 O/U 9.5 | 50% |
| US Open ATP: Denis Shapovalov vs Luca Van Assche Set 4 Winner | 50% |
| US Open ATP: Denis Shapovalov vs Luca Van Assche Set 2 O/U 10.5 | 50% |
| US Open ATP: Denis Shapovalov vs Luca Van Assche Set 3 O/U 8.5 | 50% |
| US Open ATP: Denis Shapovalov vs Luca Van Assche Set 3 O/U 9.5 | 50% |
| US Open ATP: Denis Shapovalov vs Luca Van Assche Set 3 O/U 10.5 | 50% |
| US Open ATP: Denis Shapovalov vs Luca Van Assche Set 4 O/U 8.5 | 50% |
| US Open ATP: Denis Shapovalov vs Luca Van Assche Set 4 O/U 9.5 | 50% |
| US Open ATP: Denis Shapovalov vs Luca Van Assche Set 4 O/U 10.5 | 50% |
| US Open ATP: Denis Shapovalov vs Luca Van Assche Match O/U 38.5 | 49% |
| US Open ATP: Denis Shapovalov vs Luca Van Assche Set Handicap +/-1.5 | 44% |
| US Open ATP: Denis Shapovalov vs Luca Van Assche Match O/U 40.5 | 42% |
| US Open ATP: Denis Shapovalov vs Luca Van Assche Total Sets: O/U 4.5 | 30% |
| US Open ATP: Denis Shapovalov vs Luca Van Assche Set 1 O/U 10.5 | 27% |
| US Open ATP: Denis Shapovalov vs Luca Van Assche Set Handicap +/-2.5 | 23% |
Market context
Traders on decentralised prediction markets give 72% probability to us open atp: denis shapovalov vs luca van assche. This market refers to the tennis match between Denis Shapovalov and Luca Van Assche in the US Open ATP, originally scheduled for September 2, 2026 at 11:00AM ET. This market will resolve to 'Denis Sh…
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
Polymarket-based markets settle through the UMA Optimistic Oracle on Polygon. A proposer submits the outcome, a two-hour challenge window opens, and unchallenged proposals finalise the resolution. Payouts settle automatically in USDC the moment the result is final — no bookmaker, no delay.
Kalshi-based markets settle in USD via the CFTC-regulated clearinghouse. Betfair Exchange settles in GBP/EUR net of commission. Manifold is play-money and does not pay out real funds.
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.
- 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.
- 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 ATP: Denis Shapovalov vs Luca Van Assche on Best Prediction Markets UK
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