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 |
|---|---|
| Palermo: Francesca Jones vs Miriam Bulgaru | 100% |
| Completed Match | 100% |
| Palermo: Francesca Jones vs Miriam Bulgaru Set 1 Winner | 100% |
| Palermo: Francesca Jones vs Miriam Bulgaru Set 1 O/U 8.5 | 100% |
| Palermo: Francesca Jones vs Miriam Bulgaru Set 2 Winner | 100% |
| Palermo: Francesca Jones vs Miriam Bulgaru Set Handicap +/-1.5 | 100% |
| Palermo: Francesca Jones vs Miriam Bulgaru Total Sets: O/U 2.5 | 0% |
| Palermo: Francesca Jones vs Miriam Bulgaru Match O/U 21.5 | 0% |
| Palermo: Francesca Jones vs Miriam Bulgaru Set 2 O/U 8.5 | 0% |
| Palermo: Francesca Jones vs Miriam Bulgaru Set 1 O/U 9.5 | 0% |
| Palermo: Francesca Jones vs Miriam Bulgaru Match O/U 22.5 | 0% |
| Palermo: Francesca Jones vs Miriam Bulgaru Set 2 O/U 9.5 | 0% |
| Palermo: Francesca Jones vs Miriam Bulgaru Set Handicap +/-1.5 | 0% |
| Palermo: Francesca Jones vs Miriam Bulgaru Set 1 O/U 10.5 | 0% |
| Palermo: Francesca Jones vs Miriam Bulgaru Set 2 O/U 10.5 | 0% |
| Palermo: Francesca Jones vs Miriam Bulgaru Match O/U 23.5 | 0% |
Market context
Francesca Jones and Miriam Bulgaru are due to meet in Palermo, and the market’s 100% YES price implies the exchange is treating the match as effectively certain to reach a normal result within the settlement window. That is consistent with the broader pre-match view in tennis pricing: bookmakers and preview sites have generally made Jones a clear favourite, with one set of odds putting her around 1.36 and several prediction models giving her an 87% win probability.[2][1][5]
For traders, the key historical reference is that these players have already met, with Jones beating Bulgaru in straight sets in their 2024 meeting in Cali.[9] There is also a direct comparison point for how uneven the match-up can look on paper: some preview services have projected Jones to win 2-0 and kept total-games expectations relatively low, which usually supports a market leaning towards a straightforward completion rather than a long, volatile contest.[1][3]
The main catalysts are practical rather than narrative: whether the Palermo schedule holds, whether either player withdraws before first serve, and whether any weather or tournament congestion pushes the match outside the seven-day no-winner rule. If the match starts but is left unfinished, the contract’s outcome depends on who advances, so any retirement or suspension news matters more than the scoreboard alone. In on-chain terms, the current 100% YES implies the USDC-settled market is already pricing away most cancellation risk, with little room left unless a late withdrawal or schedule change appears; broader BTC/ETH moves would matter mainly through risk appetite, not the tennis logic itself.
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.
- 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 volatile are crypto prediction markets?
- Crypto markets react to spot prices — a 5% BTC move typically shifts a "BTC above X by date" market 10-20%. Polymarket crypto market liquidity is usually six-figure USD, sufficient for active trading.
- 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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