Roland Garros ATP: Daniel Merida Aguilar vs Ben Shelton

Platform comparison

Active sub-markets

Market context

Polymarket has priced Daniel Merida Aguilar's chances of defeating Ben Shelton at Roland Garros 2026 at 3%, valuing a YES token at roughly $0.03 per USDC on Polygon. The match sits in the ATP draw for the clay-court Grand Slam, scheduled for 24 May 2026 at 05:00 ET. Shelton, the American ranked in the top 20, enters as a heavy favourite; Merida Aguilar, a Spanish player competing lower in the rankings, faces a steep task on a surface where established clay specialists typically dominate. The 97% implied probability favouring Shelton reflects both his seeding advantage and the historical pattern of upsets at Roland Garros remaining rare at this stage of the draw.

Comparable upset scenarios at Roland Garros show that unranked or low-ranked challengers breach the top 20 in roughly 2–4% of matches across the tournament, though clay-court specialisation narrows those odds further. Shelton's record on clay remains mixed relative to his hard-court performance, a detail worth monitoring as the tournament approaches. Traders should track official ATP rankings, injury reports, and any schedule adjustments in the fortnight before the settlement window closes on 31 May 2026. Recent form, head-to-head records if available, and court conditions reported during the tournament will inform whether the 3% pricing holds or shifts materially once play begins.

Methodology

This page reviews Roland Garros ATP: Daniel Merida Aguilar vs Ben Shelton across five venues. We show live odds for Polymarket-based markets (sourced from the Polygon order book); for other venues we list platform attributes, since the comparable contracts are not exposed via a public API on every venue. Every CTA points at PolyGram — the application we operate, where you trade directly against the Polymarket order book at 0% fees.

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.

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.

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.