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% |
| Wimbledon WTA: Caty McNally vs Elena Rybakina Set Handicap +/-1.5 | 100% |
| Wimbledon WTA: Caty McNally vs Elena Rybakina | 0% |
| Wimbledon WTA: Caty McNally vs Elena Rybakina Match O/U 21.5 | 0% |
| Wimbledon WTA: Caty McNally vs Elena Rybakina Set 2 O/U 8.5 | 0% |
| Wimbledon WTA: Caty McNally vs Elena Rybakina Set 1 Winner | 0% |
| Wimbledon WTA: Caty McNally vs Elena Rybakina Total Sets: O/U 2.5 | 0% |
| Wimbledon WTA: Caty McNally vs Elena Rybakina Set 1 O/U 8.5 | 0% |
| Wimbledon WTA: Caty McNally vs Elena Rybakina Set 2 Winner | 0% |
| Wimbledon WTA: Caty McNally vs Elena Rybakina Set 1 O/U 9.5 | 0% |
| Wimbledon WTA: Caty McNally vs Elena Rybakina Set 2 O/U 9.5 | 0% |
| Wimbledon WTA: Caty McNally vs Elena Rybakina Match O/U 22.5 | 0% |
| Wimbledon WTA: Caty McNally vs Elena Rybakina Set 1 O/U 10.5 | 0% |
| Wimbledon WTA: Caty McNally vs Elena Rybakina Match O/U 23.5 | 0% |
| Wimbledon WTA: Caty McNally vs Elena Rybakina Set 2 O/U 10.5 | 0% |
Market context
Market consensus: 100% chance of wimbledon wta: caty mcnally vs elena rybakina. Prediction markets aggregate real capital to produce this probability signal. This market refers to the tennis match between Caty McNally and Elena Rybakina in the Wimbledon WTA, originally scheduled for July 2, 2026 at 6:00AM ET. This market will resolve t…
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.
- 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.
- 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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