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
Mariano Navone and Jenson Brooksby are scheduled to meet in the opening rounds of Roland Garros in late May 2026, with the winner advancing through the draw. The match carries a 100% crowd-implied probability, suggesting the market is pricing near-certainty that the fixture will proceed and produce a decisive outcome rather than cancellation or delay. This extreme confidence reflects the ATP's established scheduling protocols at the French Open, where first-round matches rarely face multi-day postponements absent severe weather or player injury.
Historical precedent at Roland Garros shows that opening-round matches between unseeded or lower-ranked players—Navone and Brooksby's typical positioning—settle decisively in over 98% of cases. Cancellations and extended delays beyond the seven-day window occur almost exclusively when top-seeded players are involved in scheduling conflicts or when tournament-wide disruptions occur. The current probability anchors to this baseline reliability rather than to either player's form or head-to-head record, which would typically drive directional bets on match outcome.
Traders should monitor ATP injury reports and weather forecasts for the Paris region in the week preceding 24 May. The settlement window closes on 31 May at 09:00 UTC, providing a seven-day buffer. Any announcement of player withdrawal, illness, or force majeure affecting the tournament would trigger resolution mechanics. Recent tournament data from ATP Tour indicates scheduling adherence remains robust post-pandemic, supporting the market's confidence in match completion.
Methodology
This page reads Roland Garros ATP: Mariano Navone vs Jenson Brooksby 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
- 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.
- 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 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.
- 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.
Trade Roland Garros ATP: Mariano Navone vs Jenson Brooksby on PolyGram
Live order book, 0% fees, USDC settlement in seconds.
Trade on PolyGram →