Platform comparison
| Platform | YES odds | NO odds | Fee | KYC | Settlement | |
|---|---|---|---|---|---|---|
Polymarket (via Kalshi vs Polymarket) 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 |
|---|---|
| Completed Match | 100% |
| Wimbledon WTA: Bianca Andreescu vs Shuai Zhang Match O/U 21.5 | 100% |
| Wimbledon WTA: Bianca Andreescu vs Shuai Zhang Match O/U 22.5 | 100% |
| Wimbledon WTA: Bianca Andreescu vs Shuai Zhang Match O/U 23.5 | 100% |
| Wimbledon WTA: Bianca Andreescu vs Shuai Zhang Set 1 O/U 8.5 | 100% |
| Wimbledon WTA: Bianca Andreescu vs Shuai Zhang Set 2 O/U 8.5 | 100% |
| Wimbledon WTA: Bianca Andreescu vs Shuai Zhang Set 1 O/U 9.5 | 100% |
| Wimbledon WTA: Bianca Andreescu vs Shuai Zhang Set 2 O/U 9.5 | 100% |
| Wimbledon WTA: Bianca Andreescu vs Shuai Zhang Set 1 O/U 10.5 | 100% |
| Wimbledon WTA: Bianca Andreescu vs Shuai Zhang Set 2 O/U 10.5 | 100% |
| Wimbledon WTA: Bianca Andreescu vs Shuai Zhang Total Sets: O/U 2.5 | 0% |
| Wimbledon WTA: Bianca Andreescu vs Shuai Zhang Set 2 Winner | 0% |
| Wimbledon WTA: Bianca Andreescu vs Shuai Zhang Set Handicap +/-1.5 | 0% |
| Wimbledon WTA: Bianca Andreescu vs Shuai Zhang | 0% |
| Wimbledon WTA: Bianca Andreescu vs Shuai Zhang Set 1 Winner | 0% |
Market context
Live Polymarket data shows 100% YES probability for Wimbledon WTA: Bianca Andreescu vs Shuai Zhang. This market refers to the tennis match between Bianca Andreescu and Shuai Zhang in the Wimbledon WTA, originally scheduled for June 29, 2026 at 6:00AM ET. This market will resolve to 'Bianca Andreesc…
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
Polymarket-based markets settle through the UMA Optimistic Oracle on Polygon. A proposer submits the outcome, a two-hour challenge window opens, and unchallenged proposals finalise the resolution. Payouts settle automatically in USDC the moment the result is final — no bookmaker, no delay.
Kalshi-based markets settle in USD via the CFTC-regulated clearinghouse. Betfair Exchange settles in GBP/EUR net of commission. Manifold is play-money and does not pay out real funds.
FAQ
- Where can I trade this market with the lowest fees?
- Polymarket is geo-blocked in the US/UK/EU. The easiest 0%-fee broker into the same order book is Kalshi vs Polymarket. Kalshi charges up to 7% per trade; Betfair Exchange takes 2-5% commission on net winnings.
- 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 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.
- 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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