Platform comparison
| Platform | YES odds | NO odds | Fee | KYC | Settlement | |
|---|---|---|---|---|---|---|
Best Prediction Markets Pick polygram.ink |
0% | 100% | 0% (USDC on-chain) | No-KYC up to $1,500 | USDC, auto via UMA oracle | Open on Best Prediction Markets → |
Polymarket polymarket.com |
0% | 100% | 0% | Geo-blocked in US/UK/EU | USDC, on-chain | Open on Best Prediction Markets → |
Kalshi kalshi.com |
— | — | Up to 7% per trade | US-only, KYC required | USD | Open on Best Prediction Markets → |
Betfair Exchange betfair.com |
— | — | 2-5% commission | Full KYC from first trade | GBP / EUR | Open on Best Prediction Markets → |
Manifold Markets manifold.markets |
— | — | Play-money (mana) | None — play-money | Mana (no cash-out) | Open on Best Prediction Markets → |
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 Best Prediction Markets.
Active sub-markets
Market context
James Duckworth, the Australian right-hander ranked around 65th on the ATP tour, faces Rafael Jodar, a Spanish player competing primarily on the Challenger circuit, in the opening round of Roland Garros scheduled for 27 May 2026. The 0% implied probability reflects Duckworth's substantial ranking advantage and his established record in Grand Slam main draws, where he has competed regularly since 2015. Jodar, by contrast, has limited ATP-level experience and would need to qualify or receive a wild card to reach the main draw at Roland Garros.
Historical precedent suggests that when a top-100 ATP player faces a Challenger-level competitor at a major, the higher-ranked player wins approximately 85–90% of the time, though upsets do occur. The current market probability of 0% appears to discount Duckworth's injury history—he has dealt with shoulder and other soft-tissue issues that have periodically affected his availability—and any possibility of withdrawal or late scheduling changes. Sportsbooks typically price such matchups with Duckworth as a heavy favourite, usually around –400 to –600 on the moneyline.
Traders should monitor official Roland Garros draw confirmations and any injury updates on Duckworth in the weeks before the tournament. The settlement window closes 3 June 2026, allowing a six-day window beyond the scheduled date for completion. Withdrawal, retirement mid-match, or cancellation would trigger the 50-50 resolution clause, though such outcomes remain statistically unlikely for a main-draw match between an established ATP player and a qualifier or wild card.
Methodology
This page is a comparison snapshot: one live quote (Polymarket), four reference venues with their key attributes, and a single execution path — every trade button routes to Best Prediction Markets, which mirrors the Polymarket order book directly.
Resolution & payout
Polymarket-based markets settle through the UMA Optimistic Oracle on Polygon. A proposer submits the outcome, a two-hour challenge window opens, and unchallenged proposals finalise the resolution. Payouts settle automatically in USDC the moment the result is final — no bookmaker, no delay.
Kalshi-based markets settle in USD via the CFTC-regulated clearinghouse. Betfair Exchange settles in GBP/EUR net of commission. Manifold is play-money and does not pay out real funds.
FAQ
- Is this market available outside the US?
- Best Prediction Markets 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 Best Prediction Markets?
- Zero. Best Prediction Markets 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: James Duckworth vs Rafael Jodar on Best Prediction Markets
Live order book, 0% fees, USDC settlement in seconds.
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