What is the line without the vig?

Both sides of a book add to more than 100%. Take the margin out and what is left is comparable to a Kalshi or Polymarket price.

No-vig fair, A
50.0%
50¢ · -100
No-vig fair, B
50.0%
50¢ · -100
The book’s vig
4.8 pts
sums to 104.8%
Implied, A
52.4%
Implied, B
52.4%

Odds converter →Arbitrage calculator →Fee calculator →

Informational only, not trading advice. Confirm rates against your own fills.

Open now

The terminal runs this on every game against both exchanges, so a book line is always read against the contract price.

Open the terminal →

Founding members keep the price they join at. No newsletter.

These calculators are informational and are not financial or trading advice. Fee schedules are modeled from each venue’s published rates and can change without notice — always confirm against your own fills.

ThinBlimp