CA Grau vs. CD Comerciantes Unidos

Platform comparison

Market context

Atlético Grau’s Liga 1 meeting with CD Comerciantes Unidos was priced by sportsbooks as a home-favourable fixture, with Grau around 1.80 to win, the draw near 3.15-3.25, and the visitors roughly 4.30, while one prediction-market feed showed Grau at 41¢, the draw at 32¢ and Comerciantes at 29¢. That sits well below the contract’s 100% YES crowd-implied probability, which leaves little room for a result other than a Grau win and suggests the market was treating the outcome as effectively settled before kick-off.

The comparison with prior pricing is straightforward: across similar Peru Liga 1 spot markets, home sides generally trade as moderate favourites rather than near-certainties, especially when the draw retains a live probability in the high-20s or low-30s. Recent previews and trading lines also leaned towards Grau, but not to the point of unanimity; analyst-style projections described them as modest favourites rather than overwhelming ones, which makes a 100% reading look far more extreme than the surrounding odds set.

For traders, the main catalysts were confirmation of the teamsheet, any late injury or suspension news, and whether the scheduled 20:00 UTC kick-off at Estadio Municipal Ambrosio Maco Arroyo held firm. The match was listed to be shown on L1 MAX, and any delay, abandonment, or administrative change to the fixture would matter more here than marginal team-news shifts because the market already implied certainty.

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

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

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.

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.

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.