Platform comparison
| Platform | YES odds | NO odds | Fee | KYC | Settlement | |
|---|---|---|---|---|---|---|
Polymarket (via BTC Prediction) Pick polygram.ink (preferred broker) |
83% | 17% | 0% (USDC on-chain) | No-KYC up to $1,500 | USDC, auto via UMA oracle | Open live market → |
Polymarket (direct) polymarket.com |
83% | 17% | 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 |
|---|---|
| National Bank Open: Luciano Darderi vs Gabriel Diallo Set 1 O/U 8.5 | 83% |
| National Bank Open: Luciano Darderi vs Gabriel Diallo Match O/U 21.5 | 65% |
| National Bank Open: Luciano Darderi vs Gabriel Diallo Set 1 O/U 9.5 | 58% |
| National Bank Open: Luciano Darderi vs Gabriel Diallo Match O/U 22.5 | 55% |
| Completed Match | 50% |
| National Bank Open: Luciano Darderi vs Gabriel Diallo Set 2 O/U 8.5 | 50% |
| National Bank Open: Luciano Darderi vs Gabriel Diallo Set 2 O/U 9.5 | 50% |
| National Bank Open: Luciano Darderi vs Gabriel Diallo Set 2 O/U 10.5 | 50% |
| National Bank Open: Luciano Darderi vs Gabriel Diallo Match O/U 23.5 | 48% |
| National Bank Open: Luciano Darderi vs Gabriel Diallo Set 2 Winner | 47% |
| National Bank Open: Luciano Darderi vs Gabriel Diallo Set 1 Winner | 45% |
| National Bank Open: Luciano Darderi vs Gabriel Diallo Total Sets: O/U 2.5 | 43% |
| National Bank Open: Luciano Darderi vs Gabriel Diallo | 42% |
| National Bank Open: Luciano Darderi vs Gabriel Diallo Set 1 O/U 10.5 | 35% |
| National Bank Open: Luciano Darderi vs Gabriel Diallo Set Handicap +/-1.5 | 34% |
| National Bank Open: Luciano Darderi vs Gabriel Diallo Set Handicap +/-1.5 | 24% |
Market context
Luciano Darderi is due to play Gabriel Diallo in the National Bank Open second round, with the market currently implying a 42% chance on Darderi to advance. That sits a little below some pre-match tennis pricing that has treated Diallo as the marginal favourite, including a 54% Diallo / 46% Darderi split in one betting-market snapshot and a 58% Diallo / 42% Darderi Elo-style projection[1][2][5].
That kind of narrow gap is typical for a match where one player has the cleaner ranking profile while the other has local conditions in his favour. Darderi is listed around ATP No. 19, while Diallo is shown as a wildcard and around ATP No. 108 on a live match page, which helps explain why the market has not moved to a one-sided price despite Diallo’s home-tournament context[4]. For on-chain traders, the relevant point is that the settlement is binary only if a winner is recorded; if the match is not completed, is cancelled, or is delayed beyond seven days without a winner, the contract resolves 50-50, so the tail risk is procedural rather than performance-based.
The main catalysts are schedule certainty and any tournament-side change to court timing, since the match was originally slated for 4 August at 8:30 pm ET but appears in live listings with later local start times, which can affect whether the contest even begins within the market’s window[4][8]. The settlement date is 12 August, so a long weather or draw-delay would matter more than a normal in-match retirement: once play starts, the market outcome depends on whether one player is officially advanced, not on the scoreline itself. In broader crypto terms, this is a small, event-driven USDC settlement with limited macro sensitivity, though late-session BTC or ETH volatility can still affect bankroll allocation and whether liquidity widens into first serve.
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.
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.
- What does a transaction cost on Polygon?
- Polygon gas is typically under $0.01 per transaction. A full trade cycle (Approve + Order + Fill) totals around $0.03 — compared to $5-50 on Ethereum mainnet.
- 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.
- Which crypto markets exist on Polymarket?
- Currently active markets include BTC/ETH/SOL price targets, halving dates, ETF approvals, hard-fork outcomes and Layer-2 TVL thresholds. The list updates weekly; biggest volume sits on BTC and ETH price forecasts.
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