San Marino: Vilius Gaubas vs Thiago Monteiro

Platform comparison

Market context

Polymarket is pricing the contract at **100% YES**, which means the market is effectively assuming Vilius Gaubas will advance against Thiago Monteiro in San Marino. On Polymarket, that exposure sits in USDC on Polygon and resolves through conditional tokens, so the key question is not the headline fixture but whether the match outcome is officially recorded before the settlement window closes.

The historical frame is straightforward: Monteiro has the edge in the head-to-head, having beaten Gaubas in both previous meetings, including a straight-sets win at Bad Waltersdorf in 2024 and a three-set win in Bastad in 2025.[7][8][9] Those results matter because they show Monteiro has handled the matchup before, even though Gaubas won their 2025 Bastad qualifying meeting at ATP level stats-wise and has posted competitive service numbers in past encounters.[2][3] With a 100% implied price, the market is already treating the outcome as near-certain, so any live upset risk is largely about whether the on-court result can be completed and confirmed normally rather than about a broad disagreement over who should be favoured.

For traders, the main catalysts are schedule integrity and official completion. The market description makes the settlement rule clear: if the match is cancelled, tied, or pushed more than seven days without a winner, it falls back to 50-50; if play starts but does not finish, the advancement decision is what matters. Match listings currently show Gaubas and Monteiro scheduled in San Marino, with live score pages and tournament listings indicating the fixture is on the calendar.[1][4][12] That makes late withdrawals, weather disruption, and any draw reordering the practical variables to watch, alongside the official result feed that ultimately determines whether the conditional token settles to Gaubas or Monteiro.

Sources: 1 · 2 · 3 · 4 · 5

Methodology

This page reviews San Marino: Vilius Gaubas vs Thiago Monteiro across five venues. The live probability is the Polymarket mid-price, sourced directly from the on-chain Polygon order book; the comparison columns benchmark each venue on fee structure, KYC, settlement currency and payment rails. Every CTA routes to PolyGram, which mirrors 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?

Polymarket is geo-blocked in the US/UK/EU. The easiest 0%-fee broker into the same order book is PolyGram. Kalshi charges up to 7% per trade; Betfair Exchange takes 2-5% commission on net winnings.

Is this market available outside the US?

Polymarket itself is geo-blocked in the US/UK/EU. Always check the legal status of prediction markets in your jurisdiction before trading.

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 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.