Roland Garros WTA: Tereza Valentova vs Magda Linette

Platform comparison

Active sub-markets

Market context

Tereza Valentova and Magda Linette are scheduled to meet in the women's draw at Roland Garros on 24 May 2026. The match carries a 0% implied probability on the current book, suggesting either extreme confidence in one player's withdrawal or a liquidity void typical of early-season clay-court matchups. Linette, a Polish player ranked in the 30s, has shown consistent performance on European clay; Valentova, a Czech competitor, remains less established at Grand Slam level. The scheduling slot—5:00 AM ET—places the match in the early morning session, which historically correlates with lower trading volume across all major platforms.

Historical precedent matters here. Unmatched markets at 0% often reflect data gaps rather than genuine certainty. On Polymarket, such positions typically widen when fresh information arrives; Kalshi's tighter KYC requirements sometimes delay participation from European traders familiar with both players' recent form. Betfair's decimal-odds display (1.01 for heavy favourites) can mask the true probability spread when comparing across platforms. Smarkets' commission structure incentivises earlier position-taking, which occasionally surfaces value before consensus hardens. The 7-day delay clause in this market's resolution terms creates a distinct arbitrage vector if either player faces injury or withdrawal within days of the match.

Watch for ITF or WTA ranking updates through May, clay-court warm-up tournament results, and any official draw confirmations from the French Tennis Federation. Linette's recent performance on red clay and Valentova's injury history are material catalysts. Settlement closes 31 May 2026, leaving minimal buffer for delayed matches—a constraint that affects position-sizing across all four platforms differently.

Methodology

This page compares Roland Garros WTA: Tereza Valentova vs Magda Linette 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

Settlement is the biggest difference between the four platforms: Polymarket on-chain in USDC (instant), Kalshi USD via CFTC (T+1), Betfair and Smarkets in local currency via bank withdrawal (T+1 to T+3). PolyGram routes every trade directly into Polymarket's on-chain settlement, which is why payouts land fastest.

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.