Platform comparison
| Platform | YES odds | NO odds | Fee | KYC | Settlement | |
|---|---|---|---|---|---|---|
PolyGram Pick polygram.ink |
100% | 0% | 0% (USDC on-chain) | No-KYC up to $1,500 | USDC, auto via UMA oracle | Open on PolyGram → |
Polymarket polymarket.com |
100% | 0% | 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
Aliaksandra Sasnovich and Marina Bassols Ribera are scheduled to meet in the final round of Roland Garros women’s qualifying, with the winner advancing into the main draw. The market is effectively pricing a straight winner outcome, while the settlement terms mean a no-contest, cancellation, tie, or a delay beyond seven days would fall back to 50-50 rather than a named player result.
The current 100% crowd lean to Sasnovich is consistent with the pre-match pricing, where she has been listed around 1.27 and Bassols Ribera near 3.56. Comparable qualifying markets at Grand Slams usually settle sharply once the match is confirmed on court, but they can be vulnerable to schedule risk because qualifying is compressed and weather delays are common in Paris. That means the listed favourite can remain dominant in the book even if the underlying probability is less extreme than the crowd implies.
The main catalysts are simple: the official Roland Garros order of play, any change to Court 6 scheduling, and whether the match is completed before the seven-day deadline in the contract. Roland Garros and WTA score pages are the cleanest live references for start-time and completion status. For crypto-linked traders, the practical link is settlement in USDC on-chain rather than the tennis result itself; wider BTC or ETH volatility only matters if it affects exchange liquidity or positioning around the market, not the contract’s outcome.
Methodology
This page reads Roland Garros, Qualification WTA: Aliaksandra Sasnovich vs Marina Bassols Ribera on-chain. Polymarket's quote comes directly from the Polygon order book — the only comparable venue with on-chain settlement. Kalshi (USD, off-chain), Betfair (GBP/EUR, off-chain) and Manifold (play-money) are listed for comparison. Every CTA routes to PolyGram, which mirrors the Polymarket order book directly.
Resolution & payout
Settlement is on-chain via UMA Optimistic Oracle. A proposer posts the outcome with a bond, a two-hour dispute window opens, then the smart contract lifts winning conditional tokens to 1 USDC and sends payments to holders' wallets automatically. No withdrawal fees beyond Polygon gas.
Off-chain venues (Kalshi, Betfair, Smarkets) settle in local fiat through bank-side clearing — faster than SWIFT, slower than on-chain. Manifold pays no real cash.
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.
- 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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