Been meaning to write this for a while and I know a lot of people are curious about what "sharp action" means or "sharp line movement" Here is a brief explanation that will hopefully help.
The question is how does a book identify who a sharp is and who is not?
There is a common misperception that those who win frequently and in large amounts are considered sharps. This is true to a very small extant since being a sharp and winning are correlated but this is not the main criteria that a book uses to indentify you as a sharp.
Quite simply, a book determines you are a sharp if you are able to beat the closing number. That is, what number did you get compared to the number that it ended at. A couple recent examples from my own bets in NCAAB.
what i got it at: What it closed at:
Penn PK Penn -4
Penn ended up losing but a big line swing of 4 pts from the openiing number
Utah St +2 Utah St +1
Final Score: Utah 67 Utah St 66.
Clemson -4.5 Clemson -6
Clemson won by 8 or 9
San Francisco +2.5 San Francisco +1
SF lost in OT last night but should have won
As you can see certaint numbers matter big time as with the case for Utah St. Also, Penn had a 4 pt line swing and even though they lost this signals a red flag to the sportsbook so just be careful.
If you are regularly beating the number then a book considers you a sharp and has a number of options. (1) cut your limits (2) kick you out of their book (3) deal you dual lines (i.e. Bowman's) or (4) let you continuing playing. The good books will focus on the lines as opposed to the players (i.e. Pinnacle, CRIS, Olympic, etc...). The bad books will not that is why I always recommend playing at the good books.
Let me just say this...you could have a guy who is winning regularly compared to a guy who is struggling and losing money but beating the closing number....The book is more likely to ban the guy who is beating the closing number and let the guy who is winning continue on b/c sooner or later that guy will lose.
Good luck to all!
:0000016:
The question is how does a book identify who a sharp is and who is not?
There is a common misperception that those who win frequently and in large amounts are considered sharps. This is true to a very small extant since being a sharp and winning are correlated but this is not the main criteria that a book uses to indentify you as a sharp.
Quite simply, a book determines you are a sharp if you are able to beat the closing number. That is, what number did you get compared to the number that it ended at. A couple recent examples from my own bets in NCAAB.
what i got it at: What it closed at:
Penn PK Penn -4
Penn ended up losing but a big line swing of 4 pts from the openiing number
Utah St +2 Utah St +1
Final Score: Utah 67 Utah St 66.
Clemson -4.5 Clemson -6
Clemson won by 8 or 9
San Francisco +2.5 San Francisco +1
SF lost in OT last night but should have won

As you can see certaint numbers matter big time as with the case for Utah St. Also, Penn had a 4 pt line swing and even though they lost this signals a red flag to the sportsbook so just be careful.
If you are regularly beating the number then a book considers you a sharp and has a number of options. (1) cut your limits (2) kick you out of their book (3) deal you dual lines (i.e. Bowman's) or (4) let you continuing playing. The good books will focus on the lines as opposed to the players (i.e. Pinnacle, CRIS, Olympic, etc...). The bad books will not that is why I always recommend playing at the good books.
Let me just say this...you could have a guy who is winning regularly compared to a guy who is struggling and losing money but beating the closing number....The book is more likely to ban the guy who is beating the closing number and let the guy who is winning continue on b/c sooner or later that guy will lose.
Good luck to all!
:0000016: