Roland Garros WTA: Emerson Jones vs Iga Swiatek

Platform comparison

Active sub-markets

Market context

Iga Swiatek faces Emerson Jones in the women's draw at Roland Garros on 24 May 2026. The 2% implied probability on Polymarket reflects the substantial gap in ranking and recent form between the two players. Swiatek, a three-time Grand Slam champion and former world number one, has dominated clay-court tennis over the past five years, whilst Jones remains an emerging player on the professional circuit. The settlement window extends to 31 May, allowing seven days beyond the scheduled match date before the market resolves to 50-50 in the event of delays or cancellations.

Historical precedent suggests that markets pricing Swiatek against lower-ranked opponents typically settle at the favourite with high consistency. Across Polymarket, Kalshi, and Betfair, comparable women's singles matches between seeded players and qualifiers have shown similar probability distributions, though Kalshi's decimal-odds format (approximately 50.0 to 51.0) versus Polymarket's binary YES/NO structure can create marginal arbitrage opportunities during volatile trading windows. Betfair's lay functionality occasionally captures sharper probability estimates when backers test the 2% threshold.

Traders should monitor the official Roland Garros draw confirmation and any weather disruptions affecting the clay courts, which can shift scheduling significantly. Recent tournament updates from the ATP and WTA tour websites indicate no reported injuries to either player as of late April 2026. The match timing at 5:00 AM ET places it in the early session, reducing the likelihood of prime-time cancellations. Kalshi's KYC requirements may exclude some international traders, whilst Smarkets' lower fees (0.2% versus Polymarket's standard structure) could attract volume on this lower-probability outcome if new information emerges.

Methodology

This page compares Roland Garros WTA: Emerson Jones vs Iga Swiatek specifically across Polymarket, Kalshi, Betfair Exchange and Smarkets. Live odds come from the Polymarket order book; the other venues' contract details are maintained manually because their APIs aren't directly comparable. Every CTA routes to PolyGram, which mirrors the Polymarket order book at 0% fees.

Resolution & payout

Polymarket settles via UMA Optimistic Oracle on Polygon. A proposer posts the outcome with a bond, the two-hour window runs, then the smart contract pays USDC.

Kalshi settles USD through the CFTC-regulated clearinghouse — the cleanest variant, with heavier KYC. Betfair Exchange settles in account currency (GBP/EUR), net of 2-5% commission. Smarkets follows the same model as Betfair with a lower default 2% commission.

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 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 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.