Estoril Open: Henrique Rocha vs Pedro Martinez

Platform comparison

Market context

The Estoril Open match between Henrique Rocha and Pedro Martinez, scheduled for 11:30AM ET on 20 July 2026, has already concluded with Martinez defeating Rocha 7-5, 7-5, rendering the YES contract for Rocha’s advancement worthless at its current 0% crowd-implied probability [1]. On Polymarket, this outcome is reflected in the USDC-denominated conditional tokens on Polygon, where the market has effectively settled against Rocha despite pre-match models suggesting a narrow edge for him. Historical precedents in ATP prediction markets show that when a match result is confirmed before settlement, prices collapse to near-zero regardless of earlier odds volatility, as the on-chain resolution mechanism prioritises final score verification over pre-tournament simulations [3].

Traders should monitor official ATP tour announcements for any post-match appeals or withdrawal confirmations that might trigger the 50-50 resolution clause, though such scenarios are rare once a match is completed [3]. The primary catalyst here is the absence of further dependency; with the result already recorded, the market’s settlement is deterministic unless a formal cancellation or delay beyond seven days occurs, which is not applicable post-match [3]. Recent coverage from Tennis Tonic initially favoured Rocha with 1.7 odds, but that projection was invalidated by Martinez’s straight-set victory, highlighting the risk of relying on pre-match models when live results override simulations [2][4].

Sources: 1 · 2 · 3 · 4

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

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 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.

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.

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.