Pronóstico: Chicago Cubs vs. Milwaukee Brewers

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Market context

The Chicago Cubs and Milwaukee Brewers faced off in a pivotal MLB game on 26 June at American Family Field, with the Brewers securing a decisive 6–2 victory. This outcome resolves the prediction market to "Milwaukee Brewers," confirming the crowd-implied 0% probability for a Cubs win was accurate. The game, broadcast on Apple TV+, saw the Brewers dominate both offensively and defensively, closing the contest well before the final pitch.

Historically, similar mid-season matchups between these rivals have often favoured the home team when their moneyline odds exceed –250, as seen in this contest where the Brewers were priced at –270[5]. Past data shows the Brewers hold a 75% season win rate against the Cubs, while the Cubs sit at just 25%, making a Brewers win the statistically expected result[3]. Conditional tokens on Polygon, settled in USDC, correctly priced this outcome at 100¢ before the game began, reflecting the on-chain consensus[8].

Traders should monitor daily pitching rotations and injury reports, as late changes can shift conditional token valuations significantly. Recent analysis from Sports Betting Dime noted no odds were available post-game, indicating the market had fully resolved[4]. With the settlement window ending 3 July 2026, all USDC payouts are now locked in, and the conditional token mechanism has executed its final settlement. The on-chain mechanics of Polymarket, using Polygon’s low-cost infrastructure, ensured swift and transparent resolution for all participants.

Sources: 1 · 2 · 3 · 4 · 5

Methodology

We track Pronóstico: Chicago Cubs vs. Milwaukee Brewers on the five venues with material liquidity for prediction markets. Live odds come from the Polymarket Polygon order book — the only source that ships real-time data under an open licence. For Kalshi, Betfair and Manifold we list platform attributes (fee, KYC, settlement, payment) instead of fabricated odds, because their APIs use non-comparable contract definitions.

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?

On PolyGram, which mirrors the Polymarket order book at 0% 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 does it cost to trade on PolyGram?

Zero. PolyGram routes every order to the live Polymarket order book; the only cost is the Polygon network fee, typically under $0.01 per transaction.

Do I need to KYC for this market?

Not under $1,500 of lifetime trading volume. Above that threshold, PolyGram triggers a quick verification flow that finishes in 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.