Toronto Blue Jays vs. Chicago Cubs

Platform comparison

Active sub-markets

Market context

The Toronto Blue Jays and Chicago Cubs played at Wrigley Field on 20 June, with the Blue Jays winning 8–6 after erasing a five-run deficit. For a prediction market, a **YES** share means the named team wins the game, while a **NO** share means it does not; if the game is postponed it stays open until completion, and if there is no make-up game or the result is a tie, the market settles 50–50.[1][5]

A crowd-implied probability of **0% YES** is best read as the market assigning no chance to that outcome at settlement, not as a statement about what actually happened on the field. In this fixture, that reading is especially stark because the official final score now shows Toronto as the winner, while the Cubs were listed as pre-game favourites at -136 and the Blue Jays entered with a 37–39 record against Chicago’s 40–36.[1] Comparable MLB moneyline markets usually move around starting pitchers, line-ups and venue, so a zero-implied price typically reflects either stale pricing, a data delay, or a market that has already been effectively resolved by the result.[1][3]

For traders, the main catalysts are straightforward: the official final statistics, any postponed-game announcement, and whether a make-up fixture is scheduled, because those determine whether the market resolves normally or reverts to 50–50. Here, MLB and ESPN game pages already show the contest as complete, which is the key dependency for settlement.[1][3][7]

Sources: 1 · 2 · 3 · 4 · 5

Methodology

We track Toronto Blue Jays vs. Chicago Cubs 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

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?

On Prediction Market UK, 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.

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.

Do I need to KYC for this market?

Not under $1,500 of lifetime trading volume. Above that threshold, Prediction Market UK 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.