Santos FC vs. CSyD Macará

Platform comparison

Market context

Santos FC host CSyD Macará in the first leg of a Copa Sudamericana round-of-16 tie at Estádio Urbano Caldeira, with kick-off listed at 22:00 UTC on 13 August 2026.[1][11] For a prediction market, a **100% YES** crowd read normally means the event is being treated as a pure settlement check rather than a pricing exercise: the practical task is to verify the fixture actually occurred within the window and that the named sides, competition, venue and date all matched the market terms.[1][11]

Comparable pre-match models and bookmaker-style previews had Santos as a clear home favourite, with published win probabilities in the high-40s to low-40s range and away-win prices well into outsider territory, while some feeds also highlighted a likely low-scoring or narrow-margin game.[5][10][12] There is also no meaningful recent head-to-head sample to lean on, so programmatic traders usually weight the market more heavily towards fixture confirmation data, official line-ups and competition status than towards historical matchup signals.[6][8]

The main catalysts to watch in a tooling workflow are late schedule changes, venue confirmation, and whether the match is recorded as played to completion before the settlement deadline; these are the fields that bots, alerts and conditional orders should poll first.[1][4][7] In live feeds, the game was also tracked as a last-16 first leg, so any abandonment, postponement or administrative reversal would matter more than in a league fixture, because the market outcome depends on the event existing as specified, not on the scoreline.[2][9][14]

Sources: 1 · 2 · 3 · 4 · 5

Methodology

We track Santos FC vs. CSyD Macará across the five venues with material prediction-market liquidity. The probability shown is the live Polymarket mid; the comparison rows summarise how each venue treats the underlying contract — fees, KYC thresholds, settlement currency, deposit options. The highlighted row marks the cheapest route into Polymarket's order book.

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 Kalshi Fees. 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'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 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.

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.