If you're only betting with one sportsbook, you're leaving money on the table. It's that simple. Odds comparison — also known as line shopping — is one of the most impactful things you can do to improve your sports betting results.
Different sportsbooks offer different odds on the same events. These differences might seem small — the difference between -110 and -105, or +150 and +160 — but over hundreds of bets, they compound into a massive impact on your bottom line.
You might be surprised at how much odds differ across books. On any given NFL game, you might see:
In this example, if you like the Chiefs, betting at Caesars at +100 instead of DraftKings at -110 is a massive difference. At -110, you need to risk $110 to win $100. At +100, you risk $100 to win $100. That's an instant 4.5% improvement in your expected return.
Let's put real numbers to this. Say you bet $100 per game and place 500 bets over a season. If comparing odds saves you just 2% per bet on average:
That's a $1,000+ swing just from taking better numbers. And if you're also identifying +EV spots, the gains multiply.
It's not just about the spread. You should compare odds on:
Player props deserve special attention. Because props are harder for sportsbooks to price accurately, the odds differences can be enormous. It's not uncommon to find 20-30 cent differences on player props between books.
For example, LeBron James over 25.5 points might be -120 at one book and -105 at another. That's a significant edge just for checking multiple sources.
Traditionally, comparing odds meant opening 8-10 sportsbook apps, finding the same game on each one, writing down the odds, and comparing them yourself. For a single game, this might take 5-10 minutes. For a full slate of games across multiple sports? You're looking at hours.
And by the time you've finished comparing, the odds may have already moved.
This is exactly the problem Edge was built to solve. Edge pulls odds from every major sportsbook in real time and displays them side by side. But it goes further than just showing you the numbers:
To maximize your odds comparison, you want accounts at as many legal sportsbooks as possible. The major ones include:
Each book has different strengths. Some consistently offer better NFL lines, others are better for props, and some have the best alternate markets. Having accounts at all of them gives you maximum flexibility.
Follow these principles to get the most out of line shopping:
Odds comparison is the lowest-hanging fruit in sports betting. It requires no special knowledge, no handicapping skill — just the discipline to always take the best available number.
Download Edge free on iOS and instantly compare odds across every sportsbook. See the best lines, get AI-powered bet grades, and never overpay for a bet again.