Bankroll

A professional or highly skilled bettor who consistently finds value in the betting markets. Sharps are respected by bookmakers and their action often moves lines. Being a sharp bettor implies disciplined bankroll management, statistical modeling, and a long-term positive expected value approach.

A sudden and significant shift in a betting line caused by a large volume of sharp money on one side. Steam moves happen quickly across multiple bookmakers as they adjust their odds. These moves often signal that professional bettors have identified a strong edge.

A numerical representation of the likelihood of an outcome and the potential return on a bet. Odds can be displayed in decimal (2.50), fractional (3/2), or American (+150) format. Higher odds indicate a less likely outcome but a larger potential payout.

A bet that is considered a sure winner, though no bet is ever truly guaranteed. The term is commonly used by tipsters and recreational bettors to express high confidence. Sharp bettors are skeptical of 'locks' because they understand that uncertainty is inherent in all sports outcomes.

The total amount returned to a bettor when a bet wins, including the original stake plus the profit. For example, a $10 bet at odds of 3.00 returns a payout of $30 ($10 stake + $20 profit). Payout is calculated as Stake x Odds in decimal format.

A bet that is cancelled and the stake is returned to the bettor. Bets can be voided for various reasons including event cancellation, player withdrawal, or if the bet was placed in error. In accumulators, a voided selection is removed and the bet is recalculated with the remaining selections.