Roland Garros ATP: James Duckworth vs Rafael Jodar

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Market context

James Duckworth, the Australian right-hander ranked around 65th globally, faces Rafael Jodar, a Spanish clay-court specialist, in the opening round of Roland Garros on 27 May 2026. Duckworth has competed consistently on the ATP tour since 2011, with his best Grand Slam performance a second-round appearance at the Australian Open in 2020. Jodar, meanwhile, remains largely unproven at the highest level, having spent most of his career on the Challenger circuit where clay courts form his primary domain. The 0% implied probability reflects the market's assessment that Duckworth's tour experience and ranking advantage represent a decisive edge.

Historical precedent suggests opening-round mismatches between established tour players and Challenger-level competitors rarely produce upsets. When lower-ranked or less-experienced clay specialists face top-100 players at Roland Garros, the touring professional typically advances in roughly 85% of such matchups, particularly when the ranking gap exceeds 30 positions. Jodar's lack of ATP-level match data from recent seasons makes prediction difficult, but his absence from significant tour results this year indicates limited preparation time against elite opposition.

Traders should monitor Duckworth's fitness status and recent clay-court form leading into the tournament; any withdrawal or injury announcement would trigger a 50-50 resolution. Similarly, confirmation of Jodar's entry into qualifying or main draw will clarify whether the match proceeds as scheduled. The settlement window closes 3 June 2026, allowing seven days for completion or rescheduling before resolution protocols activate.

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 Sport Prediction, which mirrors the Polymarket order book directly.

Resolution & payout

At resolution the UMA oracle takes over: a proposer posts the outcome with a bond, any token holder can dispute within two hours. Without dispute the result is accepted and the smart contract distributes USDC instantly.

On Kalshi (CFTC-regulated) resolution runs through their in-house clearing engine in USD. Betfair Exchange settles after match end in the account's local currency. Manifold pays no cash — only its in-platform "mana" currency.

FAQ

Where can I trade this market with the lowest fees?

On Sport Prediction, 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?

Sport Prediction 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.

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.