Estoril Open: Henrique Rocha vs Pedro Martinez

Platform comparison

Market context

Henrique Rocha lost his first-round Estoril Open match to Pedro Martinez on 20 July 2026, with the Spanish qualifier winning 7-5, 7-5 after two hours and 12 minutes[2][3]. Martinez, ranked 159th in the ATP, advanced to the round of 16, while Rocha, at 123th, fell in the opening round for the third consecutive year at this tournament[2]. The match has already concluded, meaning the prediction market titled “Estoril Open: Henrique Rocha vs Pedro Martinez” will resolve to Pedro Martinez, rendering the current 0% YES crowd-implied probability for Rocha accurate but moot.

Historically, prediction markets on completed tennis matches that settle after the event often show near-zero implied probabilities for the loser, mirroring sportsbook lines that close once the result is known. In comparable cases, such as ATP first-round matches where the outcome is confirmed pre-settlement, markets resolve cleanly without the 50-50 tie clause triggering, as the match was fully played and a winner determined[3][4]. The divergence here is minimal: sportsbooks closed with Martinez as the clear favourite (odds around 2.10), while the prediction market’s 0% YES for Rocha aligns with the settled result, unlike pre-match analyst picks that favoured Rocha in three sets[5][6].

Traders should monitor the official settlement timestamp and any delay notices from the tournament organiser, though no such delays are reported for this match[1]. The settlement window ends 27 July 2026, but since the match concluded on 20 July, the outcome is already fixed. No further announcements, schedule changes, or dependencies will alter the resolution, as the result is confirmed across multiple sports reporting sources[2][3][4].

Sources: 1 · 2 · 3 · 4 · 5

Methodology

This page reviews Estoril Open: Henrique Rocha vs Pedro Martinez 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 Kalshi vs Polymarket, which mirrors the Polymarket order book at 0% fees.

Resolution & payout

Polymarket-based markets settle through the UMA Optimistic Oracle on Polygon. A proposer submits the outcome, a two-hour challenge window opens, and unchallenged proposals finalise the resolution. Payouts settle automatically in USDC the moment the result is final — no bookmaker, no delay.

Kalshi-based markets settle in USD via the CFTC-regulated clearinghouse. Betfair Exchange settles in GBP/EUR net of commission. Manifold is play-money and does not pay out real funds.

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 Kalshi vs Polymarket. 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 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.

Do I need to KYC for this market?

On Polymarket directly, no — it's wallet-based. Intermediary brokers like Kalshi vs Polymarket 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.