Mallorca Championships: Adam Walton vs Alejandro Davidovich Fokina

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Active sub-markets

Market context

The real-world event is the Mallorca Championships tennis match between Adam Walton and Alejandro Davidovich Fokina, originally set for 6:00 AM ET on 24 June 2026. The market currently implies a 0% chance that Walton advances, suggesting traders view Fokina as the overwhelming favourite or suspect the match may not proceed.

Historically, similar 0% implied probabilities in grass-court tournaments often precede either a decisive win by the higher-ranked player or a cancellation due to weather or injury. For instance, in the 2024 Mallorca Championships, several matches with extreme odds were voided after heavy rain, resetting conditional orders to 50-50. Walton, ranked 74 at his career high with a 21-41 win-loss record, lacks the grass-court pedigree to challenge Fokina, a seasoned top-30 player with multiple ATP titles.

Traders should monitor the official ATP schedule for any postponement notices and check Fokina’s recent fitness updates, as a single injury report could shift the probability dramatically. A recent Tennis Australia article noted Fokina’s strong preparation for the grass season, reinforcing his dominance. Programmatically, this market would be approached by setting conditional orders that trigger only if the match is confirmed to start, avoiding exposure to voided scenarios.

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Methodology

We track Mallorca Championships: Adam Walton vs Alejandro Davidovich Fokina 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

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 App 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'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 App UK?

Zero. Polymarket App 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 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.