What is Line Shopping?
Comparing prices at multiple sportsbooks to bet the best available number on every play.
Line shopping is the most reliable way to add a few hundred basis points of ROI without changing your model. The same pick at +105 instead of −105 is the difference between break-even and a profitable strategy. Serious bettors hold accounts at 5–10 books and check prices before every wager.
Example
Pick: Patriots +3.5. DraftKings −110, FanDuel −108, BetMGM +100. Same bet, three different prices — only +100 is the right one.
Related terms
The difference between the line you bet and the closing line at the same book — the most predictive single metric of long-run edge.
The sportsbook's built-in margin — the gap between the sum of implied probabilities across all outcomes and 100%.
Betting both sides of the same market at different sportsbooks where the prices guarantee a small profit regardless of outcome.
See line shopping applied to a real slate
NotaSportsGuru runs the math behind every published leg — Parlay of the Day, player props, match lines — with the model’s expected value and edge on every line.