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 |
|---|---|
| Todi: Nikolas Sanchez Izquierdo vs Gabriele Piraino | 100% |
| Completed Match | 100% |
| Todi: Nikolas Sanchez Izquierdo vs Gabriele Piraino Set 2 Winner | 100% |
| Todi: Nikolas Sanchez Izquierdo vs Gabriele Piraino Set 1 Winner | 100% |
| Todi: Nikolas Sanchez Izquierdo vs Gabriele Piraino Set Handicap +/-1.5 | 100% |
| Todi: Nikolas Sanchez Izquierdo vs Gabriele Piraino Set 1 O/U 8.5 | 0% |
| Todi: Nikolas Sanchez Izquierdo vs Gabriele Piraino Set 2 O/U 8.5 | 0% |
| Todi: Nikolas Sanchez Izquierdo vs Gabriele Piraino Total Sets: O/U 2.5 | 0% |
| Todi: Nikolas Sanchez Izquierdo vs Gabriele Piraino Match O/U 21.5 | 0% |
| Todi: Nikolas Sanchez Izquierdo vs Gabriele Piraino Match O/U 22.5 | 0% |
| Todi: Nikolas Sanchez Izquierdo vs Gabriele Piraino Set 2 O/U 9.5 | 0% |
| Todi: Nikolas Sanchez Izquierdo vs Gabriele Piraino Set 1 O/U 9.5 | 0% |
| Todi: Nikolas Sanchez Izquierdo vs Gabriele Piraino Set Handicap +/-1.5 | 0% |
| Todi: Nikolas Sanchez Izquierdo vs Gabriele Piraino Match O/U 23.5 | 0% |
| Todi: Nikolas Sanchez Izquierdo vs Gabriele Piraino Set 1 O/U 10.5 | 0% |
| Todi: Nikolas Sanchez Izquierdo vs Gabriele Piraino Set 2 O/U 10.5 | 0% |
Market context
Nikolas Sanchez Izquierdo and Gabriele Piraino are scheduled to compete in a first-round match at the ATP Challenger event in Todi, Italy on 10 August 2026. The market currently reflects 100% implied probability for Sanchez Izquierdo's advancement, suggesting either a significant ranking or seeding advantage, or material uncertainty about Piraino's participation. Settlement occurs on-chain via USDC within a seven-day window from the scheduled match date; any cancellation, tie, or delay beyond that threshold triggers a 50-50 resolution.
Challenger-level tennis markets historically exhibit volatile probability shifts when lower-ranked players face seeded opponents, yet upsets remain common enough that extreme probabilities warrant scrutiny. Piraino's recent form, ranking trajectory, and any recent withdrawals from comparable events would typically anchor baseline expectations. The current 100% reading suggests either Piraino has withdrawn prior to market observation, or the crowd has priced in a decisive ranking gap—both scenarios worth verifying against live entry lists and ATP databases before settlement.
Traders should monitor official Todi tournament draws and ATP announcements through early August for confirmation of both players' participation and any schedule adjustments. Weather disruptions or venue changes could trigger the seven-day delay clause. Real-time match data feeds and betting exchange spot prices on major platforms often signal late withdrawals or injury news hours before formal cancellations. Given the settlement window closes 17 August 2026, any match rescheduling beyond 17 August would automatically resolve the contract to 50-50 regardless of eventual outcome.
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
- 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.
- How does UMA secure the resolution?
- The UMA Optimistic Oracle uses a bond system: a proposer posts a bond, a two-hour challenge window opens. On dispute the losing side forfeits the bond — financial incentive for honest resolution.
- 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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