Platform comparison
| Platform | YES odds | NO odds | Fee | KYC | Settlement | |
|---|---|---|---|---|---|---|
Polymarket (via Prediction Today) 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 |
|---|---|
| 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 faces Tatiana Prozorova in an Istanbul 2 WTA match scheduled for 13 July 2026, with the current 0% YES probability reflecting either minimal trading activity or strong market conviction in Prozorova's advancement. No material developments have emerged in the past 48 hours to shift positioning, though the settlement window extends to 20 July, allowing seven days for the match to conclude without triggering a 50-50 resolution.
Bai, a Chinese player competing primarily on the ITF and secondary WTA circuits, has limited head-to-head history against top-ranked opponents. Prozorova, a Russian competitor, typically features in mid-tier WTA tournaments and qualifying rounds. The 0% reading on Bai suggests either that Prozorova is seeded significantly higher in the draw or that early-round matchups favour her ranking differential substantially. Historical precedent shows that when one player carries a pronounced ranking advantage in qualifying or early rounds, markets often price the favourite at 70–85% unless injury concerns or recent form deterioration surface.
Traders should monitor the official Istanbul 2 draw confirmation and any late withdrawals or schedule adjustments, as the tournament runs through mid-July. Court conditions and surface preference data for both players remain relevant; WTA hard-court tournaments in July often see fatigue-related retirements. Watch for injury announcements from either player's camp or unexpected seeding changes that might narrow the gap. The settlement deadline of 20 July provides a buffer, but matches delayed beyond the original date without completion would trigger the 50-50 clause, creating tail-risk exposure for those holding positions.
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
- 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.
- 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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