Roland Garros ATP: Flavio Cobolli vs Zachary Svajda

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Market context

Flavio Cobolli, the Italian 22-year-old ranked around 32nd on the ATP circuit, faces American qualifier Zachary Svajda in an early-round Roland Garros matchup scheduled for 31 May 2026. Cobolli has shown steady improvement through the clay season, reaching a career-high ranking and posting wins at Masters 1000 events. Svajda, ranked outside the top 100, qualified for the main draw and brings limited clay-court pedigree to the encounter.

The 89% crowd probability reflects Cobolli's superior ranking and recent form trajectory. Comparable seeding disparities at Roland Garros—where top-32 players face qualifiers in early rounds—typically favour the higher-ranked player at roughly 85–90% implied likelihood, particularly when the favourite has demonstrated consistency on clay. Cobolli's progression through qualifying rounds or main-draw victories in preceding weeks would reinforce this baseline; conversely, any injury concerns or unexpected losses immediately prior would compress the gap.

Traders should monitor ATP injury bulletins and official draw confirmations through early June, as the settlement window extends to 7 June. Any withdrawal announcement from either player, or fixture rescheduling beyond the seven-day grace period, triggers a 50-50 resolution. Recent reports from ATP Tour media should clarify both players' physical status heading into the tournament. Court assignment and weather delays are secondary factors; Roland Garros typically completes first-round matches within the scheduled window unless extraordinary circumstances intervene.

Methodology

This page is a comparison snapshot: one live quote (Polymarket), four reference venues with their key attributes, and a single execution path — every trade button routes to Sport Prediction, which mirrors the Polymarket order book directly.

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 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.

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.

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.

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.