Sharp (Sharp Bettor)
A professional or highly skilled bettor whose action influences line movement.
A sharp bettor (or "sharp") is someone who consistently beats the closing line and profits long-term from sports betting. Sportsbooks track sharp accounts closely because their action carries information about where the true odds should be.
Sharp bettors use models, data analysis, and discipline to find edges. They bet for value rather than entertainment, can articulate their edge on every wager, and have years of documented results.
Sportsbooks have a complicated relationship with sharps: they use sharp action to set more accurate lines, but they also limit or ban sharp accounts to protect their bottom line. Being identified as a sharp is both a compliment and a practical problem.
Related Terms
Square (Recreational Bettor)
A casual bettor who bets for entertainment rather than as a professional.
Closing Line Value (CLV)
The difference between the odds you bet at and the final odds at market close.
Steam Move
A sudden, significant shift in odds caused by a large volume of sharp betting action.
Edge
Any advantage a bettor has over the bookmaker or casino on a specific wager.
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