Professional bettors rarely try to guess the true line from scratch. They borrow it from the sportsbooks that let sharp bettors in, then look for books that haven’t caught up.
The Sharp Books model in Optimal+ runs that playbook systematically. It takes a sharp sportsbook’s line as the benchmark, removes the vig, and flags every softer book offering a better price or a better number.
Why Sharp Lines Make a Good Benchmark
Sharp sportsbooks like Pinnacle and Circa:
Welcome winning bettors, so mistakes get bet into and corrected fast
Deal low-vig markets, so their prices start closer to the true probability
Move on information, not just public money
That makes their prices the closest thing the market has to a true line. For the full background, start with how sharp books help you find +EV bets.
The Sharp Books model turns that idea into a filter that runs across every market at once.
How the Sharp Books Model Works
Start from a sharp line. For each market, the model looks at the prices posted by sharp books.
Make sure the line is tight. A sharp price only counts as a benchmark when its market carries low vig. Loose markets are skipped.
Remove the vig. The benchmark is converted to a no-vig fair probability for each side.
Compare every other book. Any softer book offering better odds, or a better line, than the sharp fair price is a candidate.
Apply the guardrails and grade. The edge has to be meaningful and believable. Then the play is graded and tagged with the book it was measured against, like VS Pinnacle.
Each sharp book is its own benchmark. If more than one sharp book shows a softer book is mispriced, you may see a play measured against each of them.
A Worked Example (illustrative numbers)
Take a receptions prop: Ja’Marr Chase Over/Under 5.5 receptions.
The benchmark at Pinnacle:
Over -125 (55.6% implied) / Under +105 (48.8% implied)
Total: 104.3%, a tight enough market to trust
No-vig: Over 53.2%, Under 46.8%
Now the softer books:
| Sportsbook | Over 5.5 | Implied | EV at 53.2% |
|---|---|---|---|
| BetMGM | -130 | 56.5% | -5.8% |
| FanDuel | -120 | 54.5% | -2.4% |
| DraftKings | +105 | 48.8% | +9.2% |
DraftKings is still dealing the over at plus money while the sharp market makes it a 53% proposition. That’s the play: Over 5.5 at DraftKings, VS Pinnacle, with a +9.2% edge.
Better Price or Better Number
Sharp Books plays come in two flavors:
A better price on the same line, like the DraftKings over above
A better number, like Over 5.5 at a softer book when the sharp line is 6.5, or +3.5 when the sharp market is dealing +3
When a softer book offers a better number, the model still prices the bet using the sharp book’s line. It doesn’t give itself credit for the better number, so the edge shown is conservative. The true edge is at least as large, and usually larger.
Sharp Books vs. Optimal EV
| Sharp Books | Optimal EV | |
|---|---|---|
| Fair price from | One sharp book’s no-vig line | A weighted blend of many books |
| Strength | Reacts directly to the sharpest price | Robust to any single book’s mistake |
| Watch for | Only as good as that book’s line | Can lag when sharp books move first |
| Coverage | Markets where sharp books post tight lines | Broad, including props and derivative markets |
The two are complementary. Optimal EV casts the wider net, and Sharp Books is the specialist. When both flag the same bet, two different measures of fair value agree.
Reading a Sharp Books Play
Each play shows:
The benchmark tag, like VS Pinnacle, so you always know what the bet was measured against
Model Projected Odds, the sharp book’s no-vig price for that side
Vig % and Market Width of the sharp book’s market. Lower and narrower mean a more trustworthy benchmark
Break-even Win % for the price you’re getting
EV, Win %, and Units, with units sized by fractional Kelly
Other sportsbooks’ prices on the same bet, plus an odds analysis chart in the app with the sharp book as the reference
Common Mistakes
Betting after the soft book moves
Sharp Books plays exist because a softer book is slow to adjust. Once it does, the edge is gone. If the price at your book is worse than the play, recheck the break-even win % before betting.
Treating a sharp book as infallible
Sharp books are the best benchmark available, not a crystal ball. That’s why the model skips loose markets, filters out implausible edges, and shows you which benchmark it used.
Overbetting a longshot edge
An edge on a longshot is still a longshot. Let the grade set your priorities and the units set your stake.
Key Takeaways
The Sharp Books model uses a sharp sportsbook’s no-vig line as the benchmark for fair value
A benchmark only counts when its market is tight
Softer books offering a better price or a better number get flagged and tagged with the benchmark, like VS Pinnacle
Edges on better numbers are shown conservatively
Sharp Books and Optimal EV measure fair value in different ways and work well together
See every Sharp Books play, with its benchmark and edge, in Optimal+.
