Swedish Open: Alejandro Tabilo vs Thiago Agustin Tirante

Platform comparison

Market context

Alejandro Tabilo and Thiago Agustin Tirante are set to face off in a quarter-final at the Swedish Open tennis tournament today, with the match scheduled to begin at 9:30 AM ET. In prediction markets, a YES share represents a bet that Tabilo will win and advance, while a NO share bets on Tirante or a cancelled outcome. The current crowd-implied probability sits at 50% for YES, suggesting the market views this as an evenly matched contest despite some analytical models favouring the Chilean.

Historical data from similar ATP quarter-finals often shows that initial 50% probabilities can shift rapidly once players take the court, particularly when surface conditions favour one style over another. For instance, recent matches on Swedish clay have seen win probabilities swing by 10–15% within the first set, reflecting how tightly contested these encounters can be. While Dimers’ advanced model currently assigns Tabilo a 56% win chance [2], the market’s 50% pricing indicates traders are weighing Tirante’s resilience and the high variance typical of clay-court tennis.

Traders should monitor pre-match announcements regarding player fitness, weather delays, or schedule changes, as these can materially impact the outcome. The Swedish Open has faced minor weather disruptions in previous years, which sometimes lead to match postponements that trigger the market’s 50-50 settlement clause if unresolved within seven days [1]. With the settlement window ending on 24 July 2026, any delay beyond this threshold would nullify directional bets, making real-time updates from tournament officials essential for informed positioning.

Sources: 1 · 2 · 3

Methodology

Methodologically we separate two layers: the live probability (Polymarket mid-price) and the platform attributes (fee, KYC, settlement currency, payment rails). That keeps the comparison honest — a single canonical probability across the row, with the venue-by-venue trade-offs spelt out in the columns next to it.

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.

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.

Do I need to KYC for this market?

On Polymarket directly, no — it's wallet-based. Intermediary brokers like Prediction Market UK trigger KYC only above $1,500 of lifetime trading volume; under that you trade pseudonymously with a single wallet address.

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.