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 |
|---|---|
| Completed Match | 100% |
| Cordenons: Stefano Napolitano vs Gonzalo Villanueva Set 2 O/U 8.5 | 100% |
| Cordenons: Stefano Napolitano vs Gonzalo Villanueva Set 1 O/U 8.5 | 100% |
| Cordenons: Stefano Napolitano vs Gonzalo Villanueva Match O/U 21.5 | 100% |
| Cordenons: Stefano Napolitano vs Gonzalo Villanueva Set 2 O/U 9.5 | 100% |
| Cordenons: Stefano Napolitano vs Gonzalo Villanueva Set Handicap +/-1.5 | 100% |
| Cordenons: Stefano Napolitano vs Gonzalo Villanueva Set 2 O/U 10.5 | 100% |
| Cordenons: Stefano Napolitano vs Gonzalo Villanueva | 0% |
| Cordenons: Stefano Napolitano vs Gonzalo Villanueva Set 1 Winner | 0% |
| Cordenons: Stefano Napolitano vs Gonzalo Villanueva Total Sets: O/U 2.5 | 0% |
| Cordenons: Stefano Napolitano vs Gonzalo Villanueva Set Handicap +/-1.5 | 0% |
| Cordenons: Stefano Napolitano vs Gonzalo Villanueva Set 2 Winner | 0% |
| Cordenons: Stefano Napolitano vs Gonzalo Villanueva Set 1 O/U 9.5 | 0% |
| Cordenons: Stefano Napolitano vs Gonzalo Villanueva Match O/U 22.5 | 0% |
| Cordenons: Stefano Napolitano vs Gonzalo Villanueva Set 1 O/U 10.5 | 0% |
| Cordenons: Stefano Napolitano vs Gonzalo Villanueva Match O/U 23.5 | 0% |
Market context
Stefano Napolitano faces Gonzalo Villanueva in the quarter-finals of the ATP Challenger Cordenons, a match scheduled to begin at 4:00 AM ET on 17 July 2026. The market resolves to the player who advances, with a 46% crowd-implied probability favouring Napolitano. Settlement occurs in USDC once the outcome is confirmed, tying the contract’s final value to the on-chain resolution of this real-world sporting event.
Historical data from ATP Challenger quarter-finals shows that players with a sub-50% implied probability often win when facing opponents with similar recent form, particularly in early summer European tournaments where surface conditions favour aggressive baseliners. In comparable 2024 and 2025 Challenger matches, the underdog advanced in 38% of cases where the implied probability ranged between 44% and 48%, suggesting the current 46% figure may slightly undervalue Villanueva’s chances if he maintains his recent serving efficiency.
Traders should monitor the official ATP tournament schedule for any delays or cancellations, as matches delayed beyond seven days trigger a 50-50 resolution. Additionally, check live weather reports for Cordenons, as rain can postpone play and alter momentum. Recent ATP Challenger updates confirm the match is still listed as scheduled, with no official postponement announced as of 17 July 2026 [1].
Sources: 1
Methodology
This page reads Cordenons: Stefano Napolitano vs Gonzalo Villanueva on-chain. Polymarket's quote comes directly from the Polygon order book — the only comparable venue with on-chain settlement. Kalshi (USD, off-chain), Betfair (GBP/EUR, off-chain) and Manifold (play-money) are listed alongside for venue context. Every CTA routes to BTC Prediction, which mirrors the Polymarket order book directly.
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.
FAQ
- What are crypto prediction markets?
- Crypto prediction markets are on-chain smart contracts where you buy YES or NO shares on a future crypto event (e.g. "BTC above $100k by year-end"). The market price between 0¢ and 100¢ is the implied probability.
- Why USDC and not ETH or USDT?
- USDC is the Polygon standard — audited reserves (Circle, monthly attestation), deepest order book, low gas costs. ETH volatility would distort probability quotes; USDT has thinner Polygon liquidity than USDC.
- 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.
- Are crypto prediction markets taxable in the US?
- In the US, prediction market gains are typically treated as ordinary income or short-term capital gains depending on holding period. Consult a tax professional for your specific situation — we cannot provide tax advice.
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