Definition
Chalk refers to the favorite in a betting matchup, or the act of betting favorites. A 'chalk bettor' consistently backs favorites. The term comes from the days when odds were written in chalk on boards, with favorites written higher (in chalk) and underdogs below.
Example
The Chiefs are -7 favorites against the Broncos. The Chiefs are the chalk. Someone who bets the Chiefs is 'eating chalk' or 'laying chalk.' If public bettors pound the Chiefs, that's 'heavy chalk action.'
Common Questions
Is betting chalk profitable?
Is betting chalk profitable?
Not automatically. Favorites win more often but at lower payouts. The key is whether the odds offer value. Blindly betting chalk is a losing strategy because vig erodes your edge over time.
What's the opposite of chalk?
What's the opposite of chalk?
The dog (underdog). Bettors who consistently bet underdogs are called dog players. Contrarian strategies often involve fading heavy chalk and taking dogs when public perception inflates favorites.