Roland Garros ATP: Felix Auger-Aliassime vs Daniel Altmaier

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Market context

Polymarket's conditional token pair for this Roland Garros ATP first-round encounter is pricing Auger-Aliassime's progression at 62 per cent, with USDC settlement on Polygon. The Canadian, ranked in the top 20, faces Germany's Altmaier—a qualifier or lower-ranked entrant—on clay at Roland Garros on 24 May 2026. The market's current odds reflect a clear favourite status, though the 38 per cent tail assigned to Altmaier suggests traders are accounting for clay-court variability and the inherent volatility of early-round matches where seeding can misalign with actual performance.

Auger-Aliassime's historical record on clay remains his weakest surface; he has reached only one ATP final on the red dirt and typically performs better on hard courts. Altmaier, conversely, has shown occasional clay competence in lower-tier events, though his ranking typically places him outside the main draw at majors. Comparable first-round matchups between seeded players and qualifiers at Roland Garros settle favourably for the seed roughly 70–75 per cent of the time, suggesting the current 62 per cent pricing may undervalue Auger-Aliassime slightly or reflect genuine uncertainty about his clay form heading into 2026.

Traders should monitor official Roland Garros draw confirmations and any injury reports in the fortnight before 24 May. Weather conditions—particularly rain delays—could extend the settlement window, whilst withdrawal or cancellation would trigger the 50–50 resolution clause. Recent ATP scheduling announcements and Auger-Aliassime's performance in warm-up events will provide concrete signals on match-day readiness.

Methodology

We track Roland Garros ATP: Felix Auger-Aliassime vs Daniel Altmaier 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

Polymarket-based markets settle through the UMA Optimistic Oracle on Polygon. A proposer submits the outcome, a two-hour challenge window opens, and unchallenged proposals finalise the resolution. Payouts settle automatically in USDC the moment the result is final — no bookmaker, no delay.

Kalshi-based markets settle in USD via the CFTC-regulated clearinghouse. Betfair Exchange settles in GBP/EUR net of commission. Manifold is play-money and does not pay out real funds.

FAQ

Where can I trade this market with the lowest fees?

On Polymarket Legit?, 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?

Polymarket Legit? 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.

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.