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 |
|---|---|
| Completed Match | 100% |
| Istanbul 2: Zhuoxuan Bai vs Tatiana Prozorova Set 1 O/U 8.5 | 100% |
| Istanbul 2: Zhuoxuan Bai vs Tatiana Prozorova Set Handicap +/-1.5 | 100% |
| Istanbul 2: Zhuoxuan Bai vs Tatiana Prozorova | 0% |
| Istanbul 2: Zhuoxuan Bai vs Tatiana Prozorova Set 1 Winner | 0% |
| Istanbul 2: Zhuoxuan Bai vs Tatiana Prozorova Total Sets: O/U 2.5 | 0% |
| Istanbul 2: Zhuoxuan Bai vs Tatiana Prozorova Set 2 Winner | 0% |
| Istanbul 2: Zhuoxuan Bai vs Tatiana Prozorova Match O/U 21.5 | 0% |
| Istanbul 2: Zhuoxuan Bai vs Tatiana Prozorova Set 2 O/U 8.5 | 0% |
| Istanbul 2: Zhuoxuan Bai vs Tatiana Prozorova Set Handicap +/-1.5 | 0% |
| Istanbul 2: Zhuoxuan Bai vs Tatiana Prozorova Set 1 O/U 9.5 | 0% |
| Istanbul 2: Zhuoxuan Bai vs Tatiana Prozorova Match O/U 22.5 | 0% |
| Istanbul 2: Zhuoxuan Bai vs Tatiana Prozorova Set 2 O/U 9.5 | 0% |
| Istanbul 2: Zhuoxuan Bai vs Tatiana Prozorova Set 1 O/U 10.5 | 0% |
| Istanbul 2: Zhuoxuan Bai vs Tatiana Prozorova Match O/U 23.5 | 0% |
| Istanbul 2: Zhuoxuan Bai vs Tatiana Prozorova Set 2 O/U 10.5 | 0% |
Market context
Zhuoxuan Bai and Tatiana Prozorova are scheduled to meet in the Istanbul 2 tournament on 13 July 2026. The match represents a lower-tier WTA event, with settlement contingent on a completed match by 20 July. The 0% crowd-implied probability on this contract suggests either extreme confidence in one player's absence or withdrawal, or minimal trading activity establishing a floor price rather than genuine market conviction.
Comparable WTA qualifying and secondary-draw matchups at this tier historically show volatile odds compression when one competitor carries recent injury concerns or has withdrawn from preceding events. Prozorova's recent tournament participation and ranking trajectory should anchor baseline expectations; Bai's form and court-surface suitability on hard courts in Istanbul provide the secondary read. Markets pricing either player at zero typically reflect either confirmed withdrawal information or such thin liquidity that no genuine probability has been discovered.
Traders should monitor official WTA draw confirmations and any injury bulletins through early July, as Istanbul 2 often sees late withdrawals. Sportsbook lines, where available, typically price these secondary-draw matches with wider spreads than major events, creating potential divergence from prediction-market prices if one book has fresher withdrawal intelligence. The settlement window's seven-day grace period means match delays carry material resolution risk; any postponement beyond 20 July without completion triggers the 50-50 outcome regardless of match status.
Methodology
We track Istanbul 2: Zhuoxuan Bai vs Tatiana Prozorova across the five venues with material prediction-market liquidity. The probability shown is the live Polymarket mid; the comparison rows summarise how each venue treats the underlying contract — fees, KYC thresholds, settlement currency, deposit options. The highlighted row marks the cheapest route into Polymarket's order book.
Resolution & payout
Settlement runs on-chain. Polymarket's contract logic separates YES and NO shares as conditional tokens; at resolution the winning share lifts to $1.00 and the losing one to $0. The outcome input comes from the UMA Optimistic Oracle, which secures against bad resolution with a bond + dispute window.
Once finalised, the smart contract pays USDC to the holders' wallets within minutes — no withdrawal fees beyond Polygon network gas. Kalshi settles in USD via CFTC clearance, Betfair in account currency net of commission, Manifold in play-money mana with no cash-out.
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 PolyGram. 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.
- How fast are USDC deposits?
- Polygon credits deposits after 12 confirmations — usually under 30 seconds. Withdrawals follow the same path and land back in your wallet within minutes.
- 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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