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
Novak Djokovic faces French qualifier Giovanni Mpetshi Perricard in the opening round of Roland Garros ATP in May 2026. The 5% implied probability for Perricard reflects the substantial gap in ranking and experience; Djokovic remains a three-time Roland Garros champion despite his age, whilst Perricard is an emerging talent with limited Grand Slam exposure. The market's settlement hinges on match completion by 31 May 2026, with a 50-50 resolution if the fixture extends beyond seven days without resolution or is cancelled entirely.
Historical context suggests early-round upsets at Roland Garros occur infrequently against players of Djokovic's calibre. Since 2015, Djokovic has lost only three first-round matches at major tournaments, all to players ranked significantly higher than Perricard's current standing. Perricard's breakthrough came via ATP 250 success in 2024, but he lacks the consistency record typical of players who trouble seeded opponents at clay majors. The 5% probability aligns with baseline upset rates for such mismatches rather than reflecting specific form concerns about Djokovic.
Traders should monitor Djokovic's pre-tournament fitness announcements and any late scheduling changes, as the 5:00 AM ET start time creates unusual conditions. Recent ATP injury reports and Perricard's clay-court preparation through May will signal whether the odds require adjustment. On-chain USDC settlement occurs post-match confirmation, with typical liquidity concentrated around major tournament milestones. Funding rates on prediction platforms often spike during the week preceding Roland Garros as retail interest peaks.
Methodology
Methodologically this overview focuses on on-chain pricing: Polymarket's live mid comes from the Polygon conditional-token order book and settles automatically in USDC. The other three venues — Kalshi, Betfair, Manifold — are listed with their platform attributes, because they operate off-chain and a 1:1 comparison of contract mechanics isn't possible.
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.
- 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 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.
Trade Roland Garros ATP: Giovanni Mpetshi Perricard vs Nov… on PolyGram
Live order book, 0% fees, USDC settlement in seconds.
Trade on PolyGram →