Roland Garros WTA: Aryna Sabalenka vs Elsa Jacquemot

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Market context

Aryna Sabalenka is scheduled to face Elsa Jacquemot in the opening round of Roland Garros on 28 May 2026. The market currently reflects near-certainty of the match occurring and Sabalenka progressing, though the 100% probability assigned to "YES" appears to conflate match completion with a specific outcome rather than simply the fixture taking place.

Sabalenka's trajectory at Roland Garros provides the primary context for reading this probability. The Belarusian has reached the Australian Open final twice and holds a top-5 ranking, but clay remains her weakest surface historically—she has never advanced beyond the quarter-finals at Roland Garros. Jacquemot, a French wildcard entrant, typically competes in lower-tier circuits and would represent a favourable draw for Sabalenka. The 100% reading likely reflects the substantial ranking gap and home-court disadvantage for Jacquemot rather than absolute certainty of match completion.

Traders should monitor the WTA injury report through late May, as both players' fitness status could alter scheduling. The settlement window extends to 4 June, providing a seven-day buffer for weather delays common at Roland Garros during the spring season. Recent tournament scheduling has occasionally compressed matches when rain disrupts the initial draw, though first-round fixtures typically receive priority. Any withdrawal or late withdrawal by either player would trigger the 50-50 resolution clause, making pre-tournament confirmation announcements the key catalyst to watch.

Methodology

This page reviews Roland Garros WTA: Aryna Sabalenka vs Elsa Jacquemot 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 Prediction Today — 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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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. Prediction Today routes every order to the live Polymarket order book; the only cost is the Polygon network fee, typically under $0.01 per transaction.

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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.