MLBSat, Jul 4 · 12:16 AM

Rays @ Astros

Pricing the Rays side — Kalshi contract vs. the devigged sportsbook consensus.

Kalshi ask

59¢

Fair line

50.0¢

Edge

-9.0¢

Book by book

9 books · Rays to win

BetRivers

50.3¢

FanDuel

50.0¢

BetMGM

50.0¢

DraftKings

50.0¢

Bovada

50.0¢

MyBookie.ag

49.9¢

LowVig.ag

49.5¢

BetOnline.ag

49.5¢

BetUS

49.5¢

Consensus

50.0¢

Each bar = that book's price with the vig removed · median across books = the fair line

What an edge is worth

worked example · Rays · Rays @ Astros

Kalshi asks 59¢ for a contract the devigged consensus prices at 50¢. Pick a position size:

Position

423 contracts

If it hits / if it misses

+$167 / −$250

Expected value per trade

−$44

That's the honest shape of edge trading: no single bet is a lottery ticket — a repeatable few-percent advantage, compounded over volume, is the entire game. The terminal's job is finding you that advantage before it closes.

Expected value ≠ guaranteed outcome · fees approximated · variance is real · not betting advice

Rays is priced at 50.0% to win by the devigged consensus, while the Kalshi YES contract asks 59¢ — a -9.0¢ gap per contract before fees. Prices move fast — verify at the venue before trading.