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
Marton Fucsovics and Matteo Berrettini are scheduled to meet in the first or second round of Roland Garros in late May 2026. The current crowd-implied probability of 13% for Fucsovics represents a substantial underdog position, though the Hungarian's record against top-50 clay-court players warrants scrutiny against the Italian's seeding and surface credentials.
Berrettini has historically struggled on clay relative to hard courts, reaching a Roland Garros quarter-final only once (2021) despite multiple Grand Slam appearances. Fucsovics, conversely, has demonstrated consistent clay-court competence, with multiple ATP 250 titles on the surface and a career win-rate above 40% on red clay. Their head-to-head record stands at 2–1 in Berrettini's favour, though their most recent meeting occurred in 2019. Historical precedent suggests the 13% probability may undervalue Fucsovics's baseline clay-court strength relative to Berrettini's surface limitations, particularly if Berrettini enters the tournament with limited preparation or ranking volatility.
Traders should monitor both players' form during the spring clay-court season, particularly results from Madrid and Rome in May, which directly precede Roland Garros. Injury reports and withdrawal patterns from warm-up events will signal confidence levels. Seeding announcements, typically finalised in the week before the tournament, will clarify draw positioning and potential early-round matchups. Recent ATP rankings and any coaching or fitness changes should be tracked through official ATP communications and reputable tennis news outlets through late May 2026.
Methodology
We track Roland Garros ATP: Marton Fucsovics vs Matteo Berrettini on the five venues with material liquidity for prediction markets. Live odds come from the Polymarket Polygon order book — the only source that ships real-time data under an open licence. For Kalshi, Betfair and Manifold we list platform attributes (fee, KYC, settlement, payment) instead of fabricated odds, because their APIs use non-comparable contract definitions.
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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