Detroit Tigers vs. San Francisco Giants

Platform comparison

Market context

The underlying game is Detroit Tigers at San Francisco Giants, and the market’s 100% crowd-implied YES price is materially tighter than the wider sportsbook picture. Across books, Detroit has generally been the favourite, but the pricing is not unanimous: recent comparison pages show Tigers moneylines around -127 to -145 at several books, while other outlets have had the Giants as narrow home underdogs or even short favourites depending on timing and line movement. That makes the current contract look like an aggressive consensus trade rather than a clean match to any single market, especially given that prediction sites have split between roughly 50/50 and a modest Detroit edge.[3][7][8][12][14]

Historically, this kind of near-certain crowd price is best read as a statement about expected line movement and event completion rather than a settled game result. Comparable analyst forecasts have ranged from Detroit 50.7% to about 52.1% on some models, while Fox Sports’ betting preview had San Francisco at 55% and Detroit at 45%, underscoring that the underlying handicap is closer than a 100% probability would imply.[2][3][12] In other words, the contract is priced far above both model consensus and the live sportsbook range, so any misread of market structure or stale quoting could matter more than a one-sided team edge.[2][3][12]

Traders should watch for the final official line-up confirmation, any pitching change, and whether the scheduled first pitch or weather pushes the game into the settlement window unchanged. Because the market resolves on the completed game, postponement or a make-up date would keep it open, while cancellation or a tie would force a 50-50 outcome under the contract rules. The most meaningful catalyst is therefore not a pre-game narrative shift but any late announcement that changes the start time, starting pitchers, or whether the game is actually played as scheduled.[18][1][7]

Sources: 1 · 2 · 3 · 4 · 5

Methodology

We track Detroit Tigers vs. San Francisco Giants across the five venues with material prediction-market liquidity. The probability shown is the live Polymarket mid; the comparison rows summarise how each venue treats the underlying contract — fees, KYC thresholds, settlement currency, deposit options. The highlighted row marks the cheapest route into Polymarket's order book.

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

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.

Do I need to KYC for this market?

On Polymarket directly, no — it's wallet-based. Intermediary brokers like Best Prediction Markets 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.