Platform comparison
| Platform | YES odds | NO odds | Fee | KYC | Settlement | |
|---|---|---|---|---|---|---|
Polymarket (via PolyGram) Pick polygram.ink (preferred broker) |
100% | 0% | 0% (USDC on-chain) | No-KYC up to $1,500 | USDC, auto via UMA oracle | View on Polymarket → |
Polymarket (direct) polymarket.com |
100% | 0% | 0% | Geo-blocked in US/UK/EU | USDC, on-chain | View on Polymarket → |
Kalshi kalshi.com |
— | — | Up to 7% per trade | US-only, KYC required | USD | View on Polymarket → |
Betfair Exchange betfair.com |
— | — | 2-5% commission | Full KYC from first trade | GBP / EUR | View on Polymarket → |
Manifold Markets manifold.markets |
— | — | Play-money (mana) | None — play-money | Mana (no cash-out) | View on Polymarket → |
Outcome probabilities
Current market-implied probability for each outcome, from the live order book.
| Outcome | Probability |
|---|---|
| Wimbledon WTA: Peyton Stearns vs Nikola Bartunkova Match O/U 21.5 | 100% |
| Wimbledon WTA: Peyton Stearns vs Nikola Bartunkova Set 2 O/U 8.5 | 100% |
| Wimbledon WTA: Peyton Stearns vs Nikola Bartunkova Set 1 O/U 8.5 | 100% |
| Wimbledon WTA: Peyton Stearns vs Nikola Bartunkova Match O/U 22.5 | 100% |
| Wimbledon WTA: Peyton Stearns vs Nikola Bartunkova Match O/U 23.5 | 100% |
| Completed Match | 100% |
| Wimbledon WTA: Peyton Stearns vs Nikola Bartunkova Total Sets: O/U 2.5 | 100% |
| Wimbledon WTA: Peyton Stearns vs Nikola Bartunkova Set 2 Winner | 100% |
| Wimbledon WTA: Peyton Stearns vs Nikola Bartunkova Set 1 O/U 9.5 | 100% |
| Wimbledon WTA: Peyton Stearns vs Nikola Bartunkova Set 2 O/U 9.5 | 0% |
| Wimbledon WTA: Peyton Stearns vs Nikola Bartunkova Set 1 O/U 10.5 | 0% |
| Wimbledon WTA: Peyton Stearns vs Nikola Bartunkova Set 1 Winner | 0% |
| Wimbledon WTA: Peyton Stearns vs Nikola Bartunkova | 0% |
| Wimbledon WTA: Peyton Stearns vs Nikola Bartunkova Set Handicap +/-1.5 | 0% |
| Wimbledon WTA: Peyton Stearns vs Nikola Bartunkova Set 2 O/U 10.5 | 0% |
Market context
Traders on decentralised prediction markets give 100% probability to wimbledon wta: peyton stearns vs nikola bartunkova. This market refers to the tennis match between Peyton Stearns and Nikola Bartunkova in the Wimbledon WTA, originally scheduled for June 29, 2026 at 6:00AM ET. This market will resolve to 'Peyton Stea…
Methodology
Methodologically we separate two layers: the live probability (Polymarket mid-price) and the platform attributes (fee, KYC, settlement currency, payment rails). That keeps the comparison honest — a single canonical probability across the row, with the venue-by-venue trade-offs spelt out in the columns next to it.
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.
- How does resolution work?
- Through the UMA Optimistic Oracle on Polygon: a proposer submits the outcome, a two-hour challenge window opens, and USDC payouts settle automatically once the result is final.
- 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 PolyGram trigger KYC only above $1,500 of lifetime trading volume; under that you trade pseudonymously with a single wallet address.
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