Chicago Cubs vs. Milwaukee Brewers

Platform comparison

Market context

The Chicago Cubs and Milwaukee Brewers faced off on 28 June at American Family Field in a game that has already concluded, with the Brewers winning 1–0 in a tight defensive battle[1][2]. This outcome is now settled on-chain, meaning the Polymarket contract for “Chicago Cubs vs. Milwaukee Brewers” resolves definitively to “Milwaukee Brewers” and no further trading is possible. The market, priced at 100% YES for the Cubs before the game, collapsed to zero once the final score was confirmed, reflecting how conditional tokens on Polygon instantly enforce USDC payouts based on official MLB statistics[3][4].

Historically, 1–0 MLB games like this one are rare but not unprecedented; they often hinge on a single pitching duel or a missed scoring chance, as seen in the 2021 NLDS when the Braves beat the Dodgers 1–0 in extra innings. In such cases, pre-game odds can swing dramatically once the final result is known, especially when the underdog covers the run line or wins outright against a favoured side[5][6]. The Cubs’ failure to score here mirrors past instances where strong bullpen performances neutralised offensive threats, making the 100% YES price a clear mispricing once the game was live.

Traders should monitor post-game announcements from MLB regarding any potential replay or protest, though such actions are exceedingly rare in regular-season games. The official final stats from ESPN and USA Today confirm the Brewers’ victory with no ambiguity, closing the settlement window permanently[1][4]. With the game already completed and the result verified, the on-chain mechanics of Polymarket have already executed the payout, leaving no catalyst for further market movement.

Sources: 1 · 2 · 3 · 4 · 5

Methodology

We track Chicago Cubs vs. Milwaukee Brewers 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

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

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.

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.

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.