San Francisco Giants vs. Miami Marlins

Platform comparison

Active sub-markets

Market context

The San Francisco Giants are playing the Miami Marlins in Miami, and the cross-platform pricing is plainly split between a modest Marlins edge in sportsbooks and a flat, no-confidence read in the prediction market. ESPN listed Miami around -120, while Action Network showed a tighter Marlins number at -113 against San Francisco at -106; by contrast, Polymarket had Marlins at 52¢, implying just a small home favourite, not a dominant one.[2][1][9]

That gap matters because recent form has been ordinary rather than decisive. Action Network had the Giants at 31-43 and the Marlins at 37-38, with both teams 2-3 over their last five, while Covers’ matchup page showed Miami with a better overall record and a stronger home mark than San Francisco’s road record.[1][7] In that context, a 0% YES price on a Giants win is far below the sportsbook and analyst consensus, which still gives San Francisco some path to victory even if it is not the preferred side.[1][6][9]

Traders should watch the final status of the game, because the contract only settles after the game is completed if postponed, and reverts to 50-50 only for a cancellation or tie.[Market description] The key live dependencies are the confirmed starting pitchers, any late lineup changes, and whether the venue or scheduling changes before first pitch, since those are the main triggers for line movement and for whether a no-play outcome becomes relevant.[1][2]

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 Best Prediction Markets, which mirrors the Polymarket order book directly.

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

Is this market available outside the US?

Best Prediction Markets 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.

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, Best Prediction Markets triggers a quick verification flow that finishes in minutes.