San Francisco Giants vs. Miami Marlins

Platform comparison

Active sub-markets

Market context

The game is the San Francisco Giants against the Miami Marlins, and a **YES** share in this market pays out if San Francisco wins, while a **NO** share pays out if Miami wins; if the game is postponed, the market stays open until completion, and a cancellation or tie would settle 50-50 under the description here. ESPN’s pregame listing for the June 19 matchup showed the Giants at 31-43 and the Marlins at 37-38, with Landen Roupp listed for San Francisco and Miami’s starter still TBD, which is the kind of pre-game uncertainty that typically matters in single-game markets.[1]

The crowd-implied price at 100% YES suggests the market is already treating a Giants win as nearly certain, but that should be read cautiously because price signals can reflect limited liquidity, stale trading, or a matchup that has already been effectively decided by late-breaking team information. In comparable MLB markets, the line often moves sharply when a probable starter is confirmed, line-ups are posted, or weather creates postponement risk; in this series, MLB preview material has highlighted the pitchers and recent game context rather than any structural mismatch.[5][7]

For traders, the main catalysts are straightforward: whether the game is played as scheduled, whether either club announces a different starter, and whether official scoring confirms a final result before the settlement deadline. A recent game recap on YouTube described the Marlins beating the Giants 4-3 in the series opener, which shows how quickly these markets can swing when one result is already on the books and the next game becomes the only open settlement event.[3]

Sources: 1 · 2 · 3 · 4 · 5

Methodology

This page is a comparison snapshot: one live quote (Polymarket), four reference venues with their key attributes, and a single execution path — every trade button routes to Prediction Market UK, which mirrors the Polymarket order book directly.

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

Is this market available outside the US?

Prediction Market UK is available in most jurisdictions where Polymarket isn't directly accessible. Polymarket itself is geo-blocked in the US/UK/EU. Always check local regulations.

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 it cost to trade on Prediction Market UK?

Zero. Prediction Market 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.