Mallorca Championships: Jan-Lennard Struff vs Nuno Borges

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Active sub-markets

Market context

The underlying event is the ATP Mallorca Round of 16 tennis match between Jan-Lennard Struff and Nuno Borges, scheduled for 7:30am ET on Tuesday, 23 June 2026. Sportsbooks currently favour Borges, with initial odds at 1.64 against Struff’s 2.25, while Tennis Tonic explicitly picks Borges to win in three sets[1]. This diverges sharply from the Robinhood prediction market, where the crowd-implied probability for Struff advancing sits at 0%, suggesting a near-certainty of Borges winning or the match being voided in Struff’s favour.

Historical precedent frames this 0% line as extreme but not unprecedented; in their sole prior head-to-head encounter, Borges defeated Struff, reinforcing his grass-court advantage[7]. Borges has also become the first Portuguese player to win at the Mallorca Championships this year, having overcome a Top 50 player on grass for the second time[5][6]. Such comparable cases indicate that when a player holds a prior H2H win and recent grass success, markets often compress odds heavily, though a 0% implied probability for the opponent typically signals either a data error or an expectation of cancellation rather than a genuine loss.

Traders should monitor the official Mallorca Championships score feed for any delay beyond seven days or cancellation notices, which would trigger the 50-50 settlement clause[4]. The match is set on the GRANDSTAND court at 2:30pm local time, and any weather disruption or player injury before the start could invalidate the current pricing[1]. Recent ATP Tour reports confirm Borges’ momentum after defeating Mannarino, making him the clear catalyst for market movement if the match proceeds[8].

Sources: 1 · 2 · 3 · 4 · 5

Methodology

This page reviews Mallorca Championships: Jan-Lennard Struff vs Nuno Borges across five venues. We show live odds for Polymarket-based markets (sourced from the Polygon order book); for other venues we list platform attributes, since the comparable contracts are not exposed via a public API on every venue. Every CTA points at Best Prediction Markets UK — the application we operate, where you trade directly against the Polymarket order book at 0% fees.

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

Where can I trade this market with the lowest fees?

On Best Prediction Markets 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 Best Prediction Markets UK?

Zero. Best Prediction Markets 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 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.