Roland Garros ATP: Alejandro Tabilo vs Kamil Majchrzak

Platform comparison

Active sub-markets

Market context

Alejandro Tabilo and Kamil Majchrzak are scheduled to meet in the opening round of Roland Garros on 24 May 2026. The Chilean left-hander has climbed steadily through the ATP rankings over recent seasons, breaking into the top 20 in 2025 with consistent performances on clay courts across Europe. Majchrzak, the Polish competitor, has experienced more volatile form, with injury setbacks limiting his tournament appearances and ranking stability. Their head-to-head record stands at 1–1, with each player claiming a victory on different surfaces, though neither encounter occurred on clay.

The 100% implied probability for Tabilo reflects his superior recent trajectory and clay-court credentials. Over the past 18 months, Tabilo has posted multiple deep runs at ATP 250 events and qualified for the French Open main draw in consecutive years, whereas Majchrzak has struggled with consistency and injury management. Historical precedent suggests that when a lower-ranked player enters a Grand Slam against a higher-ranked opponent with stronger recent form, the favourite advances in roughly 70–75% of opening-round matchups, though upsets remain routine at Roland Garros given the surface's unpredictability.

Traders should monitor both players' final warm-up tournaments in May and any late injury announcements. Majchrzak's fitness status is particularly relevant—he has withdrawn from events mid-tournament in 2025. Court conditions and draw positioning could shift sentiment if either player faces unexpected scheduling pressure. The settlement window closes on 31 May, allowing a seven-day buffer for delayed matches, though first-round fixtures typically conclude within 48 hours of the scheduled date.

Methodology

We track Roland Garros ATP: Alejandro Tabilo vs Kamil Majchrzak on the five venues with material liquidity for prediction markets. Live odds come from the Polymarket Polygon order book — the only source that ships real-time data under an open licence. For Kalshi, Betfair and Manifold we list platform attributes (fee, KYC, settlement, payment) instead of fabricated odds, because their APIs use non-comparable contract definitions.

Resolution & payout

Settlement runs on-chain. Polymarket's contract logic separates YES and NO shares as conditional tokens; at resolution the winning share lifts to $1.00 and the losing one to $0. The outcome input comes from the UMA Optimistic Oracle, which secures against bad resolution with a bond + dispute window.

Once finalised, the smart contract pays USDC to the holders' wallets within minutes — no withdrawal fees beyond Polygon network gas. Kalshi settles in USD via CFTC clearance, Betfair in account currency net of commission, Manifold in play-money mana with no cash-out.

FAQ

Where can I trade this market with the lowest fees?

On Sport Prediction, which mirrors the Polymarket order book at 0% fees. Kalshi charges up to 7% per trade; Betfair Exchange takes 2-5% commission on net winnings.

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.

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.

Do I need to KYC for this market?

Not under $1,500 of lifetime trading volume. Above that threshold, Sport Prediction triggers a quick verification flow that finishes in minutes.