Roland Garros ATP: Thiago Agustin Tirante vs Pablo Carreno Busta

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Market context

Thiago Agustín Tirante, an Argentine qualifier ranked outside the top 200, faces Pablo Carreño Busta in the opening round of Roland Garros on 29 May 2026. The current crowd-implied probability of 0% for Tirante reflects the substantial gulf in experience and ranking between the two players. Carreño Busta, a former top-10 player and two-time Grand Slam semi-finalist, has competed at the highest level for over a decade and brings proven clay-court credentials from multiple deep Roland Garros runs.

Qualifiers at Grand Slams rarely trouble seeded opponents, particularly when the ranking gap exceeds 150 places. Historical data from Roland Garros shows that players ranked below 150 advance past top-50 opponents in fewer than 5% of first-round matchups. Carreño Busta's experience navigating the tournament's opening rounds, combined with his established baseline game and court sense, positions him as a heavy favourite. The 0% probability assigned to Tirante aligns with conventional expectation rather than representing an outlier assessment.

The settlement window closes on 5 June, allowing six days beyond the scheduled date for completion. Weather disruptions or scheduling conflicts could theoretically delay the match, though Roland Garros typically completes first-round fixtures within the opening week. Carreño Busta's fitness status and recent tournament activity heading into late May will be the primary variables worth monitoring, as any physical concerns could theoretically narrow the margin. Otherwise, this fixture presents minimal uncertainty from a competitive standpoint.

Methodology

This page reviews Roland Garros ATP: Thiago Agustin Tirante vs Pablo Carreno Busta 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 Who Will Win — the application we operate, where you trade directly against the Polymarket order book at 0% fees.

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

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Who Will Win 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.

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Zero. Who Will Win 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.