Sports Edge Model — every game called, every call graded, in public

Detroit Tigers at Kansas City Royals

MLB · Friday, August 21, 2026 · 8:11 PM

The model's call
Detroit Tigers to win
Model confidence 52.3%
Books consensus 52.3%
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 Detroit TigersKansas City Royals
BetMGM -120 +100
DraftKings -121 +101
Fanatics -120 +100
FanDuel -120 +102
Hard Rock Bet -115 +105
Caesars -115 +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 Detroit TigersKansas City Royals
Books consensus fair, de-vigged 52.3% 47.7%
Best book price incl. vig 53.5% 48.8%
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.

Trade the event contracts
The prediction-market prices on our game pages are tradeable markets.
Referral links — we may earn a reward if you sign up. 18+. Event contracts involve risk; this is not investment advice.

Back to today's board · The full record