Pronóstico: Detroit Tigers vs. San Francisco Giants

Platform comparison

Market context

Detroit Tigers vs San Francisco Giants is being priced on Polymarket as a **100% YES** contract for Detroit, so the on-chain market is effectively treating a Tigers win as fully certain and a Giants win as impossible at current levels. Because Polymarket settles in **USDC** on Polygon through **conditional tokens**, the displayed price is the crowd’s immediate read on the event, not a sportsbook-style line, and the contract will still follow the market’s resolution rules if the game is postponed, cancelled, or ends in a tie.

That 100% figure is far more extreme than the underlying baseball context would normally justify. Recent pre-game and live listings around this matchup had Detroit only a modest favourite, with prices clustered close to pick’em or short-moneyline territory rather than anything resembling certainty: several books and models put the Tigers around -107 to -122, while one projection still had Detroit at roughly 52% to 51% to win. In other words, traders are not just pricing a Tigers edge; they are pricing near-total confidence, which is usually a signal to check for stale liquidity, an indexing issue, or a market that has moved hard after the underlying game state changed.

A trader should watch the official MLB game status, any delay or suspension notices, and whether the scheduled first pitch has already turned into a completed result, because those are the dependencies that matter for settlement. The market description says postponed games stay open until completed, while a cancellation or tie resolves 50-50, so the key catalyst is not just the announced matchup but whether the game was played to a final official result. Recent previews still listed Detroit at San Francisco with a tight line and a total around 7.5 to 8.5 runs, which underscores that any live 100% read on Polymarket needs to be checked against the actual final score and status, not the pre-game pricing alone.

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Methodology

Methodologically we separate two layers: the live probability (Polymarket mid-price) and the platform attributes (fee, KYC, settlement currency, payment rails). That keeps the comparison honest — a single canonical probability across the row, with the venue-by-venue trade-offs spelt out in the columns next to it.

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?

Polymarket is geo-blocked in the US/UK/EU. The easiest 0%-fee broker into the same order book is Polymarket Qué Es. Kalshi charges up to 7% per trade; Betfair Exchange takes 2-5% commission on net winnings.

Is this market available outside the US?

Polymarket itself is geo-blocked in the US/UK/EU. Always check the legal status of prediction markets in your jurisdiction before trading.

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 Polymarket cost to trade?

Polymarket itself charges 0% — the only cost is the Polygon network fee, typically under $0.01 per transaction. Off-chain venues like Kalshi or Betfair charge 2-7% commission.