Platform comparison
| Platform | YES odds | NO odds | Fee | KYC | Settlement | |
|---|---|---|---|---|---|---|
Polymarket UK Pick polygram.ink |
64% | 36% | 0% (USDC on-chain) | No-KYC up to $1,500 | USDC, auto via UMA oracle | Open on Polymarket UK → |
Polymarket polymarket.com |
64% | 36% | 0% | Geo-blocked in US/UK/EU | USDC, on-chain | Open on Polymarket UK → |
Kalshi kalshi.com |
— | — | Up to 7% per trade | US-only, KYC required | USD | Open on Polymarket UK → |
Betfair Exchange betfair.com |
— | — | 2-5% commission | Full KYC from first trade | GBP / EUR | Open on Polymarket UK → |
Manifold Markets manifold.markets |
— | — | Play-money (mana) | None — play-money | Mana (no cash-out) | Open on Polymarket UK → |
Live odds for Polymarket-based markets come from the Polygon order book. Non-Polymarket venues show attributes only; clicking any row opens the market on Polymarket UK.
Active sub-markets
Market context
Chwalinska and Parry are scheduled to meet in the opening rounds of Roland Garros on 31 May 2026. The conditional token market on Polymarket currently prices Chwalinska's advancement at 64%, reflecting modest favouritism despite both players operating outside the top 50. Settlement occurs by 7 June, allowing a week's buffer for delays, though Roland Garros typically maintains strict scheduling. The USDC settlement on Polygon means traders holding either conditional token receive full payout only if their player wins; any cancellation or unfinished match defaults to 50-50 resolution, eliminating directional edge.
Parry has shown volatility across clay surfaces, with recent performances on the WTA circuit suggesting inconsistency in early-round matchups. Chwalinska's ranking trajectory and recent tournament results provide the primary basis for the 64-36 split, though neither player commands the form profile that would justify sharper odds. Historical clay-court pairings between unranked or lowly-ranked players frequently hinge on surface adaptation and mental resilience rather than raw talent gaps, making this match genuinely competitive despite current pricing.
Traders should monitor official Roland Garros draw confirmations and any late withdrawals through the ATP/WTA injury reporting channels. Weather disruptions at Roland Garros in late May are uncommon but possible; the settlement window's seven-day extension provides protection against single-day delays. Court assignment and scheduling announcements typically arrive 48 hours before play, potentially shifting perception if either player draws favourable conditions or faces scheduling strain from earlier matches.
Methodology
We track Roland Garros WTA: Maja Chwalinska vs Diane Parry on the five venues with material liquidity for prediction markets. Live odds come from the Polymarket Polygon order book — the only source that ships real-time data under an open licence. For Kalshi, Betfair and Manifold we list platform attributes (fee, KYC, settlement, payment) instead of fabricated odds, because their APIs use non-comparable contract definitions.
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
- Is this market available outside the US?
- Polymarket UK is available in most jurisdictions where Polymarket isn't directly accessible. Polymarket itself is geo-blocked in the US/UK/EU. Always check local regulations.
- 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.
- 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.
- Do I need to KYC for this market?
- Not under $1,500 of lifetime trading volume. Above that threshold, Polymarket UK triggers a quick verification flow that finishes in minutes.
Trade Roland Garros WTA: Maja Chwalinska vs Diane Parry on Polymarket UK
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