Platform comparison
| Platform | YES odds | NO odds | Fee | KYC | Settlement | |
|---|---|---|---|---|---|---|
PolyGram Pick polygram.ink |
92% | 8% | 0% (USDC on-chain) | No-KYC up to $1,500 | USDC, auto via UMA oracle | Open on PolyGram → |
Polymarket polymarket.com |
92% | 8% | 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
Francisco Cerundolo will face Botic van de Zandschulp in the first or second round of Roland Garros in late May 2026. The market currently reflects an 88% implied probability of Cerundolo advancing, pricing van de Zandschulp as a substantial underdog despite both players occupying similar ranking bands in recent seasons.
Cerundolo's clay-court record provides the foundation for the current odds. The Argentine has shown consistent performance on European red clay, reaching multiple ATP 250 finals and demonstrating comfort in extended baseline rallies—a prerequisite for Paris success. Van de Zandschulp, the Dutch player, has struggled with consistency at Grand Slam level, though he has posted occasional upsets on slower surfaces. Historical matchups between players of comparable ranking typically settle around 55–65% for the higher-ranked competitor; the 88% reading suggests the market is pricing in Cerundolo's specific clay-court advantage rather than pure ranking differential. Kalshi and Polymarket often diverge on tennis markets of this specificity, with Kalshi's decimal-odds display sometimes attracting different trader cohorts than Polymarket's probability format, though both platforms typically converge on major clay-court fixtures within 2–3 percentage points.
Traders should monitor official Roland Garros draw confirmation and any late withdrawals or injury reports in the fortnight before 24 May. Recent ATP injury announcements have occasionally shifted similar first-round matchups by 5–8 percentage points. Court assignment and weather conditions—particularly rain delays that might extend beyond the 7-day resolution window—represent secondary catalysts. Smarkets and Betfair's higher liquidity on European clay events may offer tighter spreads if the draw confirms Cerundolo as seeded.
Methodology
This page compares Roland Garros ATP: Francisco Cerundolo vs Botic van de Zandschulp specifically across Polymarket, Kalshi, Betfair Exchange and Smarkets. Live odds come from the Polymarket order book; the other venues' contract details are maintained manually because their APIs aren't directly comparable. Every CTA routes to PolyGram, which mirrors the Polymarket order book at 0% fees.
Resolution & payout
Settlement is the biggest difference between the four platforms: Polymarket on-chain in USDC (instant), Kalshi USD via CFTC (T+1), Betfair and Smarkets in local currency via bank withdrawal (T+1 to T+3). PolyGram routes every trade directly into Polymarket's on-chain settlement, which is why payouts land fastest.
FAQ
- Where can I trade this market with the lowest fees?
- On PolyGram, which mirrors the Polymarket order book at 0% fees. Kalshi charges up to 7% per trade; Betfair Exchange takes 2-5% commission on net winnings.
- 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.
- 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.
- 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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