Roland Garros ATP: Alejandro Tabilo vs Valentin Vacherot

Platform comparison

Active sub-markets

Market context

Alejandro Tabilo, the Chilean world number 20, faces Valentin Vacherot of France in an early-round Roland Garros ATP encounter scheduled for 28 May 2026. The market currently prices Tabilo's advancement at 51%, reflecting near-parity in perceived match likelihood. Settlement occurs on 4 June, allowing a six-day window for completion; any cancellation, tie, or unresolved outcome beyond that threshold triggers a 50-50 split.

Tabilo's recent form provides the primary historical anchor. His ranking trajectory and clay-court record—particularly performance at previous Roland Garros editions—establish baseline expectations against a lower-ranked opponent. Vacherot, competing at a lower ATP ranking, typically faces longer odds in such matchups, yet the 51-yes probability suggests the market perceives material uncertainty, possibly reflecting Vacherot's home-soil advantage or recent form uptick. Comparable first-round clay encounters between seeded and unseeded players at Grand Slams historically favour the higher-ranked player by 60-70% margins; this market's tighter pricing warrants investigation into recent head-to-head records or surface-specific performance data.

Traders monitoring this match should track official Roland Garros scheduling updates and any late injury announcements through the ATP's injury database. Court assignment and weather delays affecting the 28 May slot could trigger the seven-day resolution clause. Conditional order logic should account for the tie-break settlement rule: if the match begins but remains incomplete by 4 June, the market resolves 50-50 regardless of set scores. Real-time score feeds and match-status APIs will be essential for automated position management, particularly given the early morning ET scheduling that may compress monitoring windows for European-based traders.

Methodology

This page reviews Roland Garros ATP: Alejandro Tabilo vs Valentin Vacherot 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 Polymarket Bot UK — the application we operate, where you trade directly against the Polymarket order book at 0% fees.

Resolution & payout

At resolution the UMA oracle takes over: a proposer posts the outcome with a bond, any token holder can dispute within two hours. Without dispute the result is accepted and the smart contract distributes USDC instantly.

On Kalshi (CFTC-regulated) resolution runs through their in-house clearing engine in USD. Betfair Exchange settles after match end in the account's local currency. Manifold pays no cash — only its in-platform "mana" currency.

FAQ

Where can I trade this market with the lowest fees?

On Polymarket Bot UK, 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.

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 Polymarket Bot UK?

Zero. Polymarket Bot UK 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.