Libema Open: Felix Auger-Aliassime vs Kamil Majchrzak

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Market context

The Libema Open grass-court tournament in 's-Hertogenbosch will host a first-round match between Canadian Felix Auger-Aliassime and Polish qualifier Kamil Majchrzak on 12 June 2026. Polymarket currently prices this contract at 0% for Auger-Aliassime, reflecting either extreme confidence in Majchrzak or a liquidity void in the conditional token pair on Polygon. The settlement window extends to 19 June, allowing seven days for the match to conclude; any cancellation, tie, or delay beyond that threshold triggers a 50-50 resolution.

Auger-Aliassime holds a significant ranking advantage and grass-court pedigree, having reached multiple ATP finals and competed at Wimbledon regularly. Majchrzak, ranked outside the top 100 for much of his career, qualified for this event and represents a substantial underdog. Historical grass-court upsets do occur—particularly in early rounds where surface adaptation matters—but the 0% probability assigned to the higher-ranked player suggests either mispricing or minimal trading activity. Comparable first-round matches at grass tournaments typically see the seeded player priced between 65–85%, depending on ranking differential and recent form.

Traders should monitor official Libema Open draw confirmations and any late withdrawals or injury announcements from either player in the week before 12 June. Weather disruptions at Dutch grass courts can delay matches; the settlement rules allow seven days, but extended rain could push resolution toward the 50-50 threshold. Recent ATP injury reports and Auger-Aliassime's performance at spring clay events will signal his grass-court readiness.

Methodology

Methodologically we separate two layers: the live probability (Polymarket mid-price) and the platform attributes (fee, KYC, settlement currency, payment rails). The odds column is filled only where we have clean data — that avoids the made-up numbers that get a network demoted when search engines cross-check against the source venue.

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

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 Polymarket Legit??

Zero. Polymarket Legit? 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.