Roland Garros WTA: Aryna Sabalenka vs Elsa Jacquemot

Platform comparison

Active sub-markets

Market context

Aryna Sabalenka, the world number two and two-time Australian Open champion, faces French qualifier Elsa Jacquemot in an early-round Roland Garros encounter scheduled for 28 May 2026. Sabalenka arrives at the clay-court Grand Slam as one of the tournament favourites, though her 2026 season has been marked by inconsistency across hard and clay surfaces. Jacquemot, ranked outside the top 100, would need to produce a significant upset to progress; the Frenchwoman has limited WTA main-draw experience and typically competes on the ITF circuit.

The 100 per cent implied probability reflects the substantial gap in ranking and pedigree between the competitors. Historical precedent suggests qualifiers rarely trouble top-five seeds at Roland Garros, with only isolated instances of such upsets occurring when the seeded player is dealing with injury or acute form collapse. Sabalenka's recent record against lower-ranked opponents has been generally decisive, though she has occasionally dropped sets to unseeded players on clay, where movement becomes more demanding.

Traders should monitor Sabalenka's fitness status in the fortnight leading to the match, particularly any reports of the shoulder or knee issues that have occasionally sidelined her. The scheduling of her opening match at an early time slot (05:00 ET) may also influence her preparation routine. Any late withdrawal by either player or fixture rescheduling beyond the seven-day window would trigger a 50-50 resolution, though such occurrences remain uncommon at Roland Garros.

Methodology

Methodologically we separate two layers: the live probability (Polymarket mid-price) and the platform attributes (fee, KYC, settlement currency, payment rails). The odds column is filled only where we have clean data — that avoids the made-up numbers that get a network demoted when search engines cross-check against the source venue.

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

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.

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 Sport Prediction?

Zero. Sport Prediction routes every order to the live Polymarket order book; the only cost is the Polygon network fee, typically under $0.01 per transaction.

How fast are USDC deposits?

Polygon credits deposits after 12 confirmations — usually under 30 seconds. Withdrawals follow the same path and land back in your wallet within 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.