← The +EV course
074 min read

The same bet at five prices

The most reliable edge in betting, and it requires no opinion at all.

One book has your side at -115. Another has the identical bet at +100. Same game, same outcome, same everything. Taking the worse of those two is handing away money for nothing, and it is the most common mistake in betting.

What it is worth

The difference between -115 and +100 on a bet you were making anyway is roughly 7% of your stake. That is larger than almost any edge you will find by being clever about the sport. Shopping is not a supplement to handicapping — for most bettors it is worth more than the handicapping.

What it costs

Accounts at as many books as you can legally open in your state, and the discipline to check before betting rather than after. That is the entire price of admission. Different books are soft on different things, so more accounts is straightforwardly more edge.

Same bet, three books
Book A +125+$321
Book B +115−$138
Book C +100−$826

Over 500 bets, the difference between the best price and the worst is $1,147 — on the identical bet, decided by nothing but where you clicked.

Where you'll see this
Chiefs vs Bills
Josh Allen Over 1.5 Pass TD
Odds
+125
Fair
+118
EV
+3.1%
Grade
A

Tap the price on any card and every book's number on that exact line opens underneath it, best first.

Every card shows every price

The line-shopping strip on each card lists every book's number on that exact line, best first, with how recently each was seen. The check is a glance rather than five tabs.

Check yourselfNothing is scored

1 of 2

Roughly what is the gap between -115 and +100 worth on a bet you were making anyway?

2 of 2

Why is opening more accounts straightforwardly more edge?

Takeaway

Never take the second-best price on a bet you have already decided to make.

+EVergreen

Terms from this lesson

Next · 08Markets with only one side

Education, not betting advice. 21+. Gambling problem? Call or text 1-800-GAMBLER.