St. Louis Cardinals at San Francisco Giants
MLB · Wednesday, September 9, 2026 · 3:46 PM
The model's call
St. Louis Cardinals to win
Model confidence 53.2%
Books consensus 53.2%
Identical on purpose: the model applies no adjustment to the books’ de-vigged
consensus until a candidate signal proves itself in shadow audit — none has yet.
Prediction markets below are a comparison, not an input.
Line shop — latest moneyline by book
Best available price on each side is highlighted. Prices move; always confirm at the book.
| Book | St. Louis Cardinals | San Francisco Giants |
|---|---|---|
| BetMGM | -125 | +105 |
| BetRivers | -125 | +105 |
| DraftKings | -126 | +104 |
| ESPN BET | -125 | +105 |
| FanDuel | -124 | +106 |
| Caesars | -125 | +105 |
Prediction markets vs the books
Every venue sells the same thing — a dollar if that side wins — at a different price. Implied cost per venue below; amber = the cheapest way to buy that side right now.
| Venue | St. Louis Cardinals | San Francisco Giants |
|---|---|---|
| Books consensus fair, de-vigged | 53.2% | 46.8% |
| Best book price incl. vig | 55.4% | 48.5% |
| Kalshi contract price | 53.0% | 47.0% |
| Polymarket contract price | 52.5% | 47.5% |
| Markets average | 52.8% | 47.2% |
Contract prices exclude exchange trading fees (Kalshi ~1–2¢ midrange), which narrow small gaps. A venue meaningfully below the books consensus is either a bargain or an early opinion — the graded record decides which.
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