San Marino: Facundo Acosta vs Vilius Gaubas

Platform comparison

Market context

Polymarket’s contract is effectively pricing **Facundo Acosta at 100% YES** and **Vilius Gaubas at 0% NO**, so the market is treating an Acosta advance as the near-certain outcome on-chain. On Polymarket, that exposure sits inside a USDC-settled conditional token position on Polygon, with the resolution tied to which player advances rather than the exact scoreline.

That pricing fits the wider competitive context. Acosta entered San Marino as the top seed and a clay-court specialist, with a strong 2026 run on the surface and multiple Challenger titles already this season, while Gaubas came in as the third seed after a tougher route through the draw[3][10][12]. The pair have already met before, with Acosta holding the head-to-head edge, which helps explain why the market has anchored so hard to one side[4][11].

The main trader watchpoints are straightforward: the scheduled start, any late withdrawal, and whether the match is actually completed within the seven-day settlement rule. Match listings place the semi-final on 1 August 2026 at 17:10 UTC on Centre Court in San Marino, and tournament coverage indicates the event is reaching its decisive rounds on clay, so a schedule slip would matter more than in a normal ATP week[2][7][10]. If the match is not played at all, is tied, or is still unresolved after seven days, the market falls to 50-50 under the contract terms[6].

Sources: 1 · 2 · 3 · 4 · 5

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

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 Polymarket cost to trade?

Polymarket itself charges 0% — the only cost is the Polygon network fee, typically under $0.01 per transaction. Off-chain venues like Kalshi or Betfair charge 2-7% commission.

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 PolyGram 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.