Platform comparison
| Platform | YES odds | NO odds | Fee | KYC | Settlement | |
|---|---|---|---|---|---|---|
BTC Prediction Pick polygram.ink |
100% | 0% | 0% (USDC on-chain) | No-KYC up to $1,500 | USDC, auto via UMA oracle | Open on BTC Prediction → |
Polymarket polymarket.com |
100% | 0% | 0% | Geo-blocked in US/UK/EU | USDC, on-chain | Open on BTC Prediction → |
Kalshi kalshi.com |
— | — | Up to 7% per trade | US-only, KYC required | USD | Open on BTC Prediction → |
Betfair Exchange betfair.com |
— | — | 2-5% commission | Full KYC from first trade | GBP / EUR | Open on BTC Prediction → |
Manifold Markets manifold.markets |
— | — | Play-money (mana) | None — play-money | Mana (no cash-out) | Open on BTC Prediction → |
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 BTC Prediction.
Active sub-markets
Market context
Juan Manuel Cerundolo, the Argentine left-hander ranked outside the top 100, faces Martin Landaluce of Spain in the opening round of Roland Garros on 30 May 2026. The match carries a 100% crowd-implied probability favouring Cerundolo, a signal that warrants scrutiny given the settlement window extends to 6 June—a seven-day buffer that accommodates rain delays or scheduling shifts common at clay majors.
Cerundolo's recent form and ranking trajectory offer limited historical precedent for such decisive market confidence. His brother Francisco has achieved greater ATP prominence, whilst Juan Manuel has struggled with consistency on the professional circuit. Landaluce, a Spanish clay-court specialist with modest ranking credentials, typically performs better on slower surfaces than hard courts. The 100% probability reflects either strong algorithmic backing or thin liquidity rather than overwhelming statistical evidence; comparable first-round matches at Roland Garros involving unseeded players rarely settle at such extremes unless one competitor carries injury concerns or withdrawal risk.
The critical catalyst remains the official Roland Garros draw confirmation and any late injury announcements in the fortnight preceding the event. Weather patterns at Roland Garros in late May historically favour completion within the scheduled window, though clay-court matches can extend across multiple days. Traders should monitor ATP injury reports and any changes to the tournament schedule via the official ATP website. USDC settlement mechanics on btc-prediction.bet will trigger only once a winner is definitively determined; if the match remains unplayed beyond 7 June, the contract resolves 50-50 regardless of crowd sentiment.
Methodology
This page reads Roland Garros ATP: Juan Manuel Cerundolo vs Martin Landaluce 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 BTC Prediction, 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?
- BTC Prediction 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.
- 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, BTC Prediction 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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