Roland Garros ATP: Felix Auger-Aliassime vs Roman Andres Burruchaga

Platform comparison

Active sub-markets

Market context

Felix Auger-Aliassime, the Canadian world number 20, faces Roman Andres Burruchaga in the opening round of Roland Garros in late May 2026. The match is scheduled for 5:00 AM ET on 28 May, a slot typical for early-round encounters at the Paris clay-court Grand Slam. Auger-Aliassime has competed in all four majors since 2019 and holds a career record of 12 wins across Grand Slam tournaments; Burruchaga, an Argentine player ranked outside the top 100, qualifies through the draw as a lower-seeded or qualifying entrant. The 100% crowd-implied probability across prediction markets suggests near-certainty in Auger-Aliassime's advancement, though this reflects baseline expectations rather than confirmed form.

Historical seeding patterns at Roland Garros show that players ranked in the top 30 advance past qualifying or lower-ranked opponents in approximately 95% of first-round matches, with upsets concentrated among closer matchups. Auger-Aliassime's clay-court record—including a 2022 quarterfinal appearance at Roland Garros—positions him as the clear favourite, though early-round fatigue and surface adjustment remain variables. On Polymarket and Kalshi, the YES side (Auger-Aliassime) trades near 0.99 decimal odds, whilst Betfair and Smarkets show marginally wider spreads reflecting their liquidity structures and fee models; Kalshi's binary settlement and lower KYC friction have attracted higher volume on Grand Slam first-round markets.

Traders should monitor official draw confirmation and any injury announcements in the week preceding 28 May. Weather disruptions at Roland Garros—particularly rain delays extending matches beyond the scheduled window—carry settlement risk under the seven-day rule. Recent ATP injury reports and Auger-Aliassime's performance at the preceding Masters 1000 events will signal form entering the tournament.

Methodology

We read Roland Garros ATP: Felix Auger-Aliassime vs Roman Andres Burruchaga from four platform perspectives: Polymarket (on-chain CLOB), Kalshi (CFTC-regulated exchange), Betfair Exchange (sports book exchange), Smarkets (peer-to-peer betting exchange). Polymarket's live quote comes directly from the Polygon order book; the other three are listed with their platform attributes — fees, KYC, settlement currency, payment options — because a 1:1 contract comparison without API access would be guesswork.

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

Where can I trade this market with the lowest fees?

On Kalshi Alternative 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.

Is this market available outside the US?

Kalshi Alternative UK 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.

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.