While I believe that every sportsbook’s lines should be considered when determining the fair value of a given bet, some are much sharper than others.

In general, it is best to trust the books with tight lines, high limits, and aren’t overly sensitive to action. These are characteristics of a sportsbook that is confident in the lines that they set.

We sought out to find the optimal weight of each sportsbook in a given market when coming up with our fair market odds to use for Bettor Odds, our new line shopping tool. The idea is that, if two books differ on a market, the one that is “wrong” will be bet into and move towards the book that is “right.” By by the time the game starts, most books will be relatively uniform and settled at the right price.

We looked at which books had others move towards their prices, and which were the ones moving towards their peers the most. We then divided this up by sport and type of wager. The results were pretty in line with expectations – but a few things did jump out.

Of course, every sharp bettor has accounts on multiple sportsbooks to shop lines, so be sure to take advantage of all of the apps – along with the promos and sign-up bonuses – available in your state.

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NBA Main Markets (moneylines/spreads/ totals):

Sportsbook/ Weight (% of total): 

1. Circa
2. Pinnacle
3. BookMaker
4. BetOnline
5. DraftKings

  Last.  Kambi

NBA Secondary Markets (mostly player props): 

1. FanDuel: 
2. Bookmaker: 
3. Propbuilder: 
4. Novig
5. Pinnacle
6. DraftKings

  Last.  Kambi

NFL Main Markets (moneylines/ spreads/ totals):

1. Circa
2. Pinnacle 
3. BookMaker
4. NoVig
5. FanDuel

NFL Secondary Markets (mostly player props): 

1. Pinnacle
2. FanDuel
3. Bookmaker
4. Circa
5. BetOnline

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READ MORE: The best and worst sportsbooks to place Same-Game Parlays

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Conclusions:

1. Pinnacle being number 1 in NFL secondary markets is shocking to me, but they were first to market relatively often and their numbers held up very well compared to others. 

2. Circa continues to impress, being number 1 in both NBA and NFL main markets.

3. NoVig enters the party - we have been monitoring them all NBA/NFL season thinking they would fall off, but they seem to know what they are doing over there.

4. The NBA and NFL weights are pretty similar. It is interesting, considering we don’t factor our NFL weights into our NBA weights and vice versa. It shows that certain books do a better job than others at pricing consistently. 

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