Detroit Tigers vs. San Francisco Giants

Platform comparison

Market context

Detroit’s meeting with San Francisco is priced a touch more towards the Tigers in the sportsbook market than in the prediction market, with FanDuel listing Detroit at -116 and San Francisco at +106, while this contract is sitting at 54% YES for the Tigers. That makes the market broadly consistent with a narrow Detroit edge, but not a dominant one; the spread and total also point to a relatively close, low-scoring game, with Detroit -1.5 at plus money and the total around 7.5 runs at several books.[1][10][9]

The main historical frame is that this is not a strong favourite-type price, just a modest lean. Recent analyst models have been split but often land near the same zone: FanDuel’s numberFire projection gives San Francisco a 54.8% win probability, while other preview outlets have listed Detroit as a slight moneyline favourite or effectively a pick’em depending on the book and timing.[1][2][11] That mix suggests the 54% YES price on Detroit is only slightly above some model views and below others, which is typical of a market where the edge can swing on line-up and pitching information rather than on a large team-quality gap.[1][2][9]

For traders, the key catalysts are the confirmed starter announcements, any late line-up scratches, and whether the game starts on time at 4:05pm ET, since postponement would keep the market open until completion and a cancellation or tie would settle 50-50 under the contract rules. Book prices have already moved enough across outlets to show some sensitivity to those inputs, so the most relevant watchpoints are the final line-ups and any pre-game weather or schedule changes that could alter both the moneyline and the run total.[1][10][15]

Sources: 1 · 2 · 3 · 4 · 5

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

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?

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

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.

Do I need to KYC for this market?

On Polymarket directly, no — it's wallet-based. Intermediary brokers like PolyGram trigger KYC only above $1,500 of lifetime trading volume; under that you trade pseudonymously with a single wallet address.

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.