Opening Line
The initial odds or spread set by a sportsbook when a market first opens.
The opening line is the first spread, total, or odds offered by a sportsbook when they release a market. It represents the oddsmaker's initial estimate of the game's probabilities before the public or sharp bettors have weighed in.
Opening Lines vs. Closing Lines
Opening lines are often softer than closing lines because they haven't been stress-tested by heavy betting volume. Sharp bettors (professionals) often target opening lines to bet before the market corrects.
Line Shopping
Because opening lines vary between books, bettors can shop multiple sportsbooks to find the most favorable number. Even a half-point difference can significantly impact long-term profitability.
Key Takeaways
- Opening lines are set before public betting pressure is applied.
- Lines typically move from open to close as sharp and public money shapes the market.
- Being first to bet soft opening lines is a key advantage for professional bettors.
Examples
- A book opens the Chiefs -6 on Sunday night. Sharp bettors hit it, and it is -7 by Monday morning.
- One book opens a total at 47 while the others open at 45.5. Line shoppers who bet the under at 47 get an early edge.
Related Terms
Test Your Knowledge
1 / 3Do you know what Closing Line means?
The final odds offered by a sportsbook before a game starts, often used as a benchmark for line value.
Frequently Asked Questions
When do opening lines come out?
Most books post next week's NFL lines on Sunday night or Monday morning. Other sports usually open the day before the game or the morning of it.
Is it better to bet the opening line?
It can be, if you have a strong opinion. Opening lines are softer, but betting limits are lower and the line can still move against you.