Croatia Open: Roman Andres Burruchaga vs Daniel Merida Aguilar

Platform comparison

Market context

This market tracks the Croatia Open semifinal between Roman Andres Burruchaga and Daniel Merida Aguilar, where a YES share pays out if Burruchaga advances and a NO share pays out if Merida wins. Currently, the crowd assigns a 42% probability to Burruchaga winning, implying Merida is the slight favourite despite the Argentine’s recent Top 10 victory over Flavio Cobolli.

Historical head-to-head data frames this probability: Merida holds a 1–0 record against Burruchaga, having won their only prior encounter in straight sets on clay at the 2025 Modena Challenger [1][3]. Comparable ATP 250 semifinals on clay often see the player with prior H2H success lean slightly ahead, yet Burruchaga’s momentum from his first career Top 10 win complicates that narrative [4]. The 42% figure reflects this tension between Merida’s H2H edge and Burruchaga’s elevated form.

Traders should monitor the official match start time (18:30 local, 17:30 UTC) and any pre-match injury updates, as both players are on clay and fatigue from earlier rounds could influence outcomes [2]. Merida’s path to the final included defeating Tomas Martin Etcheverry, while Burruchaga’s route featured Cobolli, suggesting both are well-rested but carrying match intensity [1][4]. No external schedule dependencies exist beyond the tournament’s own timetable, and the market resolves to 50–50 only if the match is cancelled or delayed beyond seven days without a winner.

Sources: 1 · 2 · 3 · 4 · 5

Methodology

This page reviews Croatia Open: Roman Andres Burruchaga vs Daniel Merida Aguilar 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 Prediction Market UK, which mirrors the Polymarket order book at 0% fees.

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

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'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 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.