Platform comparison
| Platform | YES odds | NO odds | Fee | KYC | Settlement | |
|---|---|---|---|---|---|---|
Polymarket (via Who Will Win) Pick polygram.ink (preferred broker) |
100% | 0% | 0% (USDC on-chain) | No-KYC up to $1,500 | USDC, auto via UMA oracle | Live odds → |
Polymarket (direct) polymarket.com |
100% | 0% | 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 |
|---|---|
| Athens Open: Qinwen Zheng vs Jessica Bouzas Maneiro | 100% |
| Completed Match | 100% |
| Athens Open: Qinwen Zheng vs Jessica Bouzas Maneiro Set 1 O/U 8.5 | 100% |
| Athens Open: Qinwen Zheng vs Jessica Bouzas Maneiro Set Handicap +/-1.5 | 100% |
| Athens Open: Qinwen Zheng vs Jessica Bouzas Maneiro Set 2 Winner | 100% |
| Athens Open: Qinwen Zheng vs Jessica Bouzas Maneiro Set 1 Winner | 100% |
| Athens Open: Qinwen Zheng vs Jessica Bouzas Maneiro Set 1 O/U 9.5 | 100% |
| Athens Open: Qinwen Zheng vs Jessica Bouzas Maneiro Set 1 O/U 10.5 | 100% |
| Athens Open: Qinwen Zheng vs Jessica Bouzas Maneiro Set 2 O/U 8.5 | 0% |
| Athens Open: Qinwen Zheng vs Jessica Bouzas Maneiro Total Sets: O/U 2.5 | 0% |
| Athens Open: Qinwen Zheng vs Jessica Bouzas Maneiro Match O/U 21.5 | 0% |
| Athens Open: Qinwen Zheng vs Jessica Bouzas Maneiro Match O/U 22.5 | 0% |
| Athens Open: Qinwen Zheng vs Jessica Bouzas Maneiro Set 2 O/U 9.5 | 0% |
| Athens Open: Qinwen Zheng vs Jessica Bouzas Maneiro Match O/U 23.5 | 0% |
| Athens Open: Qinwen Zheng vs Jessica Bouzas Maneiro Set 2 O/U 10.5 | 0% |
Market context
Traders on decentralised prediction markets give 100% probability to athens open: qinwen zheng vs jessica bouzas maneiro. This market refers to the tennis match between Qinwen Zheng and Jessica Bouzas Maneiro in the Athens Open, originally scheduled for July 13, 2026 at 5:00AM ET. This market will resolve to 'Qinwen Zhe…
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
- 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 Who Will Win 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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