Roland Garros ATP: Hugo Dellien vs Valentin Royer

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Active sub-markets

Market context

Hugo Dellien and Valentin Royer are scheduled to meet in the opening round of Roland Garros on 24 May 2026. Dellien, a Bolivian left-hander ranked around 80–90 on the ATP tour, has competed regularly at Grand Slams but lacks consistent deep runs. Royer, a French player, typically operates in the 150–200 ranking band and would be competing on home soil—a factor that historically shifts match dynamics at Roland Garros. The 0% crowd probability suggests either missing data on one player's recent form or an assumption that one party has withdrawn.

First-round Grand Slam matches between players outside the top 50 rarely attract early trading volume; the market's current state reflects typical illiquidity for such fixtures. Historical precedent shows that French wildcards at Roland Garros advance roughly 35–40% of the time against unranked or lower-ranked opponents, though Royer's ranking places him outside typical wildcard territory. Dellien's record against French clay specialists is mixed, with his left-handed serve providing tactical advantage on slower surfaces.

Traders monitoring this market should flag the official Roland Garros draw confirmation (typically released in late April) and any injury announcements in the fortnight before play. Royer's recent ATP Challenger results and Dellien's clay-court form in the weeks preceding the tournament will be the primary catalysts. Programmatic traders should set conditional orders tied to draw confirmation and monitor ATP injury databases; the 7-day delay clause in settlement terms creates edge cases worth automating around, particularly if either player contests qualifying rounds beforehand.

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 PolyGram, 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

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.