Platform comparison
| Platform | YES odds | NO odds | Fee | KYC | Settlement | |
|---|---|---|---|---|---|---|
Polymarket UK Pick polygram.ink |
100% | 0% | 0% (USDC on-chain) | No-KYC up to $1,500 | USDC, auto via UMA oracle | Open on Polymarket UK → |
Polymarket polymarket.com |
100% | 0% | 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
Alina Korneeva, the Russian qualifier ranked outside the top 100, faces Italian Elisabetta Cocciaretto in the opening round of Roland Garros on 25 May 2026. The market currently prices Korneeva's advancement at 100% on Polymarket, reflecting conditional token mechanics where YES holders receive full USDC payout on Polygon if she wins the match. This extreme pricing suggests either overwhelming confidence in Korneeva's superiority or minimal liquidity depth in the contract—a common pattern for early-round WTA matches where trading volume concentrates only near settlement.
Historically, qualifier-versus-seeded matchups at Grand Slams show high variance. Cocciaretto, an established tour player with multiple WTA main-draw appearances, typically enters such encounters as favourite despite ranking gaps. The 100% probability contradicts conventional seeding logic and comparable first-round markets, where even clear underdogs retain 15–25% implied win probability. This disconnect warrants scrutiny: either the market has priced in specific intelligence about Korneeva's form or Cocciaretto's injury status, or liquidity constraints have distorted the contract's true odds.
Traders should monitor official Roland Garros draws (published weeks before play), injury announcements from either player's camp, and recent ITF or qualifying results that might validate Korneeva's seeding position. Court assignments and weather forecasts released 48 hours before the match can shift momentum in early rounds. Any withdrawal or schedule delay beyond 7 June triggers the 50-50 resolution clause, creating tail-risk exposure for YES holders holding through settlement.
Methodology
This page is a comparison snapshot: one live quote (Polymarket), four reference venues with their key attributes, and a single execution path — every trade button routes to Polymarket UK, which mirrors the Polymarket order book directly.
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
- 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.
- 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.
Trade Roland Garros WTA: Alina Korneeva vs Elisabetta Cocc… on Polymarket UK
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