San Francisco Giants vs. Miami Marlins

Platform comparison

Active sub-markets

Market context

Polymarket is pricing the Giants–Marlins contract at **0% YES** on the Giants, which on a USDC, Polygon-settled market means traders are effectively assigning no value to a Giants win and nearly all of the implied value to the Marlins side. For a hands-on user, that is an unusually one-sided read for a live MLB game, especially with the settlement window still tied to the official final result and the contract only resolving 50-50 if the game is cancelled or ends tied under the market rules.

The current 0% figure is best read against the broader pre-game market, where conventional books still had San Francisco as a modest road favourite. Action Network listed the Giants around **-144** on the moneyline, while StatMuse showed a similar range at **-133** against **+125** for Miami.[1][3] The market has also been shaped by recent form: Miami beat San Francisco **6-3** on Saturday, extending the Marlins’ home winning run, while the Giants entered with a sub-.500 record overall.[5][6] In that context, a zero-priced Giants contract looks less like a balanced toss-up and more like an aggressive signal that traders expect the market to settle on Miami.

The main catalysts now are operational rather than theoretical: lineup announcements, any late pitching change, and whether the game reaches completion without a postponement or make-up scenario. MLB listings put first pitch at **1:40pm EDT**, and any delay would matter because Polymarket’s conditional tokens keep the market open until the game is officially completed.[8] If there is no completed game, or if the league records a tie or cancellation without a make-up, the market’s stated **50-50** fallback becomes the key settlement mechanic rather than the on-field result.

Sources: 1 · 2 · 3 · 4 · 5

Methodology

This page reviews San Francisco Giants vs. Miami Marlins across five venues. We show live odds for Polymarket-based markets (sourced from the Polygon order book); for other venues we list platform attributes, since the comparable contracts are not exposed via a public API on every venue. Every CTA points at Kalshi UK — the application we operate, where you trade directly against the Polymarket order book at 0% fees.

Resolution & payout

At resolution the UMA oracle takes over: a proposer posts the outcome with a bond, any token holder can dispute within two hours. Without dispute the result is accepted and the smart contract distributes USDC instantly.

On Kalshi (CFTC-regulated) resolution runs through their in-house clearing engine in USD. Betfair Exchange settles after match end in the account's local currency. Manifold pays no cash — only its in-platform "mana" currency.

FAQ

Where can I trade this market with the lowest fees?

On Kalshi 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 Kalshi UK?

Zero. Kalshi 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.

Do I need to KYC for this market?

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