Platform comparison
| Platform | YES odds | NO odds | Fee | KYC | Settlement | |
|---|---|---|---|---|---|---|
Polymarket (via Polymarket Legit?) Pick polygram.ink (preferred broker) |
100% | 0% | 0% (USDC on-chain) | No-KYC up to $1,500 | USDC, auto via UMA oracle | Trade this market → |
Polymarket (direct) polymarket.com |
100% | 0% | 0% | Geo-blocked in US/UK/EU | USDC, on-chain | Trade this market → |
Kalshi kalshi.com |
— | — | Up to 7% per trade | US-only, KYC required | USD | Trade this market → |
Betfair Exchange betfair.com |
— | — | 2-5% commission | Full KYC from first trade | GBP / EUR | Trade this market → |
Manifold Markets manifold.markets |
— | — | Play-money (mana) | None — play-money | Mana (no cash-out) | Trade this market → |
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
Bianca Andreescu lost her opening-round Wimbledon WTA match against Shuai Zhang on 29 June 2026, with Zhang winning 0–2 in sets[2]. The market in question, which bets on Andreescu advancing past Zhang, now carries a crowd-implied probability of 0% YES, reflecting the match’s completed status and Zhang’s clear victory[4]. On Polymarket, this contract is priced at zero USDC on the Polygon network, as conditional tokens for Andreescu advancing are effectively worthless given the on-chain resolution that Zhang won[5].
Historically, prediction markets for matches that have already concluded resolve instantly to the winner, with no lingering probability for the loser to advance[1]. Comparable cases from past WTA tournaments show that once a match result is confirmed on official scoreboards, markets assigning a player as the winner of a future round collapse to zero, as the event is no longer contingent[4]. This 0% pricing aligns with that precedent, where the outcome is fixed and not subject to further uncertainty.
Traders should monitor official WTA announcements for any potential match cancellations or delays beyond seven days, which could trigger a 50–50 settlement under the market’s rules[1]. However, with the match already played and Zhang confirmed as the winner, such catalysts are irrelevant unless new information emerges about the match’s validity[6]. Recent tactical analysis suggests Zhang’s ability to expose Andreescu’s second serve was decisive, reinforcing the likelihood that no reversal will occur[5]. No further schedule updates are expected, as the tournament has moved past the first round.
Methodology
This page reviews Wimbledon WTA: Bianca Andreescu vs Shuai Zhang across five venues. The live probability is the Polymarket mid-price, sourced directly from the on-chain Polygon order book; the comparison columns benchmark each venue on fee structure, KYC, settlement currency and payment rails. Every CTA routes to Polymarket Legit?, which mirrors the Polymarket order book at 0% fees.
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
- 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.
- Do I need to KYC for this market?
- On Polymarket directly, no — it's wallet-based. Intermediary brokers like Polymarket Legit? 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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