Line Shopping Tools and Aggregators
At a high level, line shopping is simple:
- Decide what you want to bet (or what your model says is +EV)
- Find the book offering the best price/line
- Bet quickly before the market moves
The problem is execution.
The Bandwidth Problem
Checking five apps manually is annoying. Checking ten is a part-time job. Checking twenty is basically impossible—especially if you're trying to bet:
- Close to news (injury reports, lineup changes)
- In the hour before tipoff
- During NFL Sunday when everything is moving
Key Insight
Think of it like this:
- Your model creates the edge
- Line shopping preserves the edge
- Speed and organization determine whether you actually realize the edge
The Case for Aggregators
This is where an odds aggregator changes the game. There are many good ones on the market. Some popular options include:
- The Sharp App (odds aggregator plus betting tools)
- OddsJam
- DarkHorse Odds
- Oddspedia
- And many others
The specific tool matters less than having a tool. Manual comparison across 10+ books is simply not viable for serious volume.
What Good Aggregators Provide
| Feature | Why It Matters |
|---|---|
| Real-time odds from 10+ books | See best price instantly |
| Historical line movement | Understand where sharp money moved |
| Alert systems | Get notified when your target line appears |
| Bet tracking integration | Log bets with the odds you got |
| CLV calculation | Automatic closing line value tracking |
Tip
If you read Chapter 12 on CLV, you already know the punchline: consistently getting top-of-market or near-top-of-market prices is one of the most reliable ways to improve your CLV profile over time.
Why Speed Matters
Lines move. Sometimes slowly over hours, sometimes in seconds after news breaks.
Example scenario:
- 2:00 PM: Starting RB listed questionable
- 2:15 PM: Backup RB rushing prop is 32.5 yards across all books
- 2:30 PM: Starter ruled OUT
- 2:31 PM: Sharp books move backup's line to 48.5
- 2:35 PM: Recreational books slowly follow
- 3:00 PM: All books at 48.5 or higher
If you have an aggregator with alerts, you might catch Book X still at 38.5 at 2:32 PM. Manual checking? You're likely too late.
Warning
Slow is expensive when lines move. The edge you identified at 2:15 PM may not exist at 2:45 PM. Speed is part of your edge.
Setting Up Your Betting Infrastructure
The Minimum Setup (3-5 Books)
For casual bettors, start with accounts at the major recreational books:
- DraftKings
- FanDuel
- BetMGM
- Caesars
- ESPN Bet (or regional alternative)
Even checking just these 5 books gives you meaningful price improvement over betting blindly.
The Professional Setup (8-15+ Books)
Serious bettors add:
- Pinnacle (sharp book, benchmark for fair odds)
- Circa (sharp book)
- Bet365
- PointsBet (if available)
- BetRivers
- SuperBook
- State-specific books (in your jurisdiction)
Note
Sharp books like Pinnacle and Circa serve two purposes: (1) they often have the best prices, and (2) their closing lines serve as the benchmark for tracking your CLV.
Bankroll Distribution Across Books
You'll need to distribute your bankroll across books. Here's a practical approach:
| Book Type | % of Bankroll | Rationale |
|---|---|---|
| Primary recreational (DK, FD) | 30-40% | Most volume, decent promos |
| Secondary recreational | 25-35% | Catch outlier prices |
| Sharp books (Pinnacle, Circa) | 20-30% | Best closing prices |
| Niche/state-specific | 10-15% | Occasional gems |
Tip
Rebalance monthly. If one book has most of your bankroll because you've been winning there (or they have good promos), consider withdrawing and redistributing. You want funds available where the best prices appear.
Managing Multiple Accounts
Practical Tips
- Use a password manager — You'll have 10+ logins
- Track balances in a spreadsheet — Know where your money is
- Set up deposit/withdrawal alerts — Monitor for promos
- Keep some reserve — Don't have 100% deployed; leave room for quick funding
Dealing with Limits
If you're consistently getting positive CLV, expect to be limited eventually. Plan ahead:
- Have accounts at multiple sportsbooks so you can spread action
- Don't hammer one book — Distribute your sharp plays
- Consider betting exchanges (like Novig, ProphetX) that welcome sharp action
- Sharp books like Pinnacle or Circa won't limit winners
Key Insight
Getting limited is a badge of honor. It means you're winning. But it also means you need to plan ahead. Don't put all your action on one book.
📝 Exercise
Instructions
Audit your current betting infrastructure and identify gaps.
Exercise: Infrastructure Audit
Part 1: Current State List all sportsbooks where you currently have accounts:
| Book | Account? | Funded? | Last Bet Date |
|---|---|---|---|
| DraftKings | Y/N | Y/N | |
| FanDuel | Y/N | Y/N | |
| BetMGM | Y/N | Y/N | |
| Caesars | Y/N | Y/N | |
| ESPN Bet | Y/N | Y/N | |
| Pinnacle | Y/N | Y/N | |
| Others... |
Part 2: Gap Analysis
- How many books do you currently check before placing a bet?
- Do you use an aggregator? Which one?
- What's your average time from "deciding to bet" to "bet placed"?
Part 3: Action Items Based on your audit, identify 2-3 specific improvements:
Key Takeaway
Key Insight
The infrastructure of professional betting isn't sexy, but it's essential. Having accounts at 10+ books and using an odds aggregator isn't overkill—it's the minimum setup for serious prop bettors. Speed and organization determine whether you actually capture the edge your analysis identifies.