Platform comparison
| Platform | YES odds | NO odds | Fee | KYC | Settlement | |
|---|---|---|---|---|---|---|
PolyGram Pick polygram.ink |
0% | 100% | 0% (USDC on-chain) | No-KYC up to $1,500 | USDC, auto via UMA oracle | Open on PolyGram → |
Polymarket polymarket.com |
0% | 100% | 0% | Geo-blocked in US/UK/EU | USDC, on-chain | Open on PolyGram → |
Kalshi kalshi.com |
— | — | Up to 7% per trade | US-only, KYC required | USD | Open on PolyGram → |
Betfair Exchange betfair.com |
— | — | 2-5% commission | Full KYC from first trade | GBP / EUR | Open on PolyGram → |
Manifold Markets manifold.markets |
— | — | Play-money (mana) | None — play-money | Mana (no cash-out) | Open on PolyGram → |
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 PolyGram.
Active sub-markets
Market context
Sara Sorribes Tormo, the Spanish left-hander ranked around 40th on the WTA tour, faces German qualifier Tamara Korpatsch in an early-round Roland Garros encounter scheduled for 24 May 2026. The 0% YES probability reflected on Polymarket suggests the market has priced in either a technical cancellation risk or an expectation that Sorribes Tormo will advance; conditional token mechanics on Polygon mean traders holding YES shares receive USDC only if Sorribes Tormo wins, whilst NO holders profit from a Korpatsch victory or match non-completion. The settlement window extends to 31 May, allowing seven days beyond the scheduled date for the match to conclude without triggering the 50-50 tie-break resolution.
Sorribes Tormo has reached the third round at Roland Garros twice (2021, 2023) and typically performs competitively on clay, though her record against qualifiers shows mixed results. Korpatsch, a journeyman qualifier, has limited main-draw history at Grand Slams and holds a lower career ranking. Historical precedent suggests early-round matches involving seeded or ranked players against qualifiers rarely resolve to 50-50 unless weather or injury intervenes significantly.
Traders should monitor the official Roland Garros draw confirmation and any injury bulletins released in the week before 24 May. Court assignments and weather forecasts for Paris clay conditions typically emerge 48 hours prior to play. The early morning 5:00 AM ET slot (11:00 AM Paris time) is standard for opening-round matches and carries minimal scheduling risk of multi-day delays.
Methodology
This page reviews Roland Garros WTA: Sara Sorribes Tormo vs Tamara Korpatsch across five venues. We show live odds for Polymarket-based markets (sourced from the Polygon order book); for other venues we list platform attributes, since the comparable contracts are not exposed via a public API on every venue. Every CTA points at PolyGram — the application we operate, where you trade directly against 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
- 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 it cost to trade on PolyGram?
- Zero. PolyGram routes every order to the live Polymarket order book; the only cost is the Polygon network fee, typically under $0.01 per transaction.
- 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, PolyGram 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.
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