San Francisco Giants vs. Chicago Cubs

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Active sub-markets

Market context

On 6 June 2026, the San Francisco Giants will face the Chicago Cubs in a regular-season Major League Baseball fixture at 2:20 PM Eastern Time. The market currently reflects a 45 per cent probability of a Giants victory, implying the Cubs are favoured at 55 per cent. Settlement occurs on 13 June 2026 at 18:20 UTC, allowing a week for official MLB statistics to be finalised and any postponement to be resolved. The market resolves 50–50 only if the game is cancelled without a make-up fixture or ends in a tie, an outcome that occurs in fewer than 0.1 per cent of MLB games.

Historical matchups between these franchises show the Cubs have won 52 of their last 100 meetings, a marginal edge that does not fully explain the current 10-point probability gap. Injury status, bullpen depth, and recent form typically drive larger shifts in comparable fixtures; the Giants' performance in May and early June will be a material factor in whether the market reprices before the fixture date. Recent Cubs roster changes or Giants pitcher availability announcements would likely trigger significant movement.

From a regulatory standpoint, this market operates under different jurisdictional frameworks depending on trader location. UK-based traders face no specific KYC requirement for positions under £1,500 notional value, though this threshold applies per market and does not exempt larger aggregate exposure. German traders should note that prediction markets fall under GlüStV oversight, with some platforms requiring formal licensing. US traders remain subject to CFTC reach regardless of platform jurisdiction, though sports-outcome markets occupy a narrower regulatory space than financial derivatives.

Methodology

We track San Francisco Giants 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

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 Polymarket KYC 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.

What does it cost to trade on Polymarket KYC UK?

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

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.