Platform comparison
| Platform | YES odds | NO odds | Fee | KYC | Settlement | |
|---|---|---|---|---|---|---|
Polymarket (via Best Prediction Markets) Pick polygram.ink (preferred broker) |
70% | 30% | 0% (USDC on-chain) | No-KYC up to $1,500 | USDC, auto via UMA oracle | Live odds → |
Polymarket (direct) polymarket.com |
70% | 30% | 0% | Geo-blocked in US/UK/EU | USDC, on-chain | Live odds → |
Kalshi kalshi.com |
— | — | Up to 7% per trade | US-only, KYC required | USD | Live odds → |
Betfair Exchange betfair.com |
— | — | 2-5% commission | Full KYC from first trade | GBP / EUR | Live odds → |
Manifold Markets manifold.markets |
— | — | Play-money (mana) | None — play-money | Mana (no cash-out) | Live odds → |
Outcome probabilities
Current market-implied probability for each outcome, from the live order book.
| Outcome | Probability |
|---|---|
| Wimbledon WTA: Serena Williams vs Maya Joint Set 2 O/U 9.5 | 70% |
| Wimbledon WTA: Serena Williams vs Maya Joint Set 1 O/U 8.5 | 67% |
| Wimbledon WTA: Serena Williams vs Maya Joint Set 2 O/U 10.5 | 60% |
| Completed Match | 50% |
| Wimbledon WTA: Serena Williams vs Maya Joint Set 1 O/U 9.5 | 50% |
| Wimbledon WTA: Serena Williams vs Maya Joint Match O/U 21.5 | 48% |
| Wimbledon WTA: Serena Williams vs Maya Joint Set 1 Winner | 47% |
| Wimbledon WTA: Serena Williams vs Maya Joint | 47% |
| Wimbledon WTA: Serena Williams vs Maya Joint Set 2 Winner | 46% |
| Wimbledon WTA: Serena Williams vs Maya Joint Match O/U 22.5 | 45% |
| Wimbledon WTA: Serena Williams vs Maya Joint Match O/U 23.5 | 39% |
| Wimbledon WTA: Serena Williams vs Maya Joint Set Handicap +/-1.5 | 38% |
| Wimbledon WTA: Serena Williams vs Maya Joint Set 2 O/U 8.5 | 36% |
| Wimbledon WTA: Serena Williams vs Maya Joint Total Sets: O/U 2.5 | 36% |
| Wimbledon WTA: Serena Williams vs Maya Joint Set 1 O/U 10.5 | 23% |
Market context
Traders on decentralised prediction markets give 70% probability to wimbledon wta: serena williams vs maya joint. This market refers to the tennis match between Serena Williams and Maya Joint in the Wimbledon WTA, originally scheduled for June 29, 2026 at 6:00AM ET. This market will resolve to 'Serena Williams' …
Methodology
This page reviews Wimbledon WTA: Serena Williams vs Maya Joint across five venues. The live probability is the Polymarket mid-price, sourced directly from the on-chain Polygon order book; the comparison columns benchmark each venue on fee structure, KYC, settlement currency and payment rails. Every CTA routes to Best Prediction Markets, which mirrors the Polymarket order book at 0% fees.
Resolution & payout
At resolution the UMA oracle takes over: a proposer posts the outcome with a bond, any token holder can dispute within two hours. Without dispute the result is accepted and the smart contract distributes USDC instantly.
On Kalshi (CFTC-regulated) resolution runs through their in-house clearing engine in USD. Betfair Exchange settles after match end in the account's local currency. Manifold pays no cash — only its in-platform "mana" currency.
FAQ
- Is this market available outside the US?
- Polymarket itself is geo-blocked in the US/UK/EU. Always check the legal status of prediction markets in your jurisdiction before trading.
- What's the difference between YES and NO shares?
- A YES share pays $1.00 if the event happens, $0 otherwise. A NO share pays $1.00 if the event doesn't happen. The market price between 0¢ and 100¢ is the implied probability.
- What does Polymarket cost to trade?
- Polymarket itself charges 0% — the only cost is the Polygon network fee, typically under $0.01 per transaction. Off-chain venues like Kalshi or Betfair charge 2-7% commission.
- Do I need to KYC for this market?
- On Polymarket directly, no — it's wallet-based. Intermediary brokers like Best Prediction Markets trigger KYC only above $1,500 of lifetime trading volume; under that you trade pseudonymously with a single wallet address.
- How reliable are the quoted odds?
- The YES/NO percentages are the live mid-prices of the Polymarket order book. On deep markets they move every few seconds; on thinner ones you'll see short plateaus.
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