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 and Tamara Korpatsch are scheduled to meet in the first round of the 2026 Roland Garros women's draw on 24 May. The match carries a 0% crowd-implied probability on this contract, suggesting near-total consensus around one player's advancement, though the early scheduling (5:00 AM ET) and clay-court variables typical of Paris warrant scrutiny before settlement.
Sorribes Tormo, a Spanish clay-court specialist ranked in the 30s, has historically performed well at Roland Garros relative to her overall ranking, reaching the second round in recent editions. Korpatsch, a German player, has shown inconsistency on clay and typically peaks on faster surfaces. Historical matchup data and recent tour performance favour Sorribes Tormo's clay credentials, which likely explains the extreme probability skew. However, first-round upsets at Grand Slams occur at measurable frequency—approximately 15–20% of seeded players lose opening matches—so the 0% reading warrants comparison against standard sportsbook lines and broader analyst consensus before committing capital.
Traders should monitor official Roland Garros draw confirmations and any late withdrawals or injury announcements in the week preceding 24 May. Weather conditions on clay—particularly rain delays—could trigger the seven-day extension clause and force resolution to 50-50 if the match extends beyond 31 May without completion. Fitness updates on either player and recent tour results through May will provide real-time calibration against the current extreme probability. Cross-checking against major sportsbooks' opening lines will reveal whether this contract's pricing reflects genuine consensus or potential mispricing.
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
- Is this market available outside the US?
- PolyGram 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.
- 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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