MLB – Major League Baseball; North American professional baseball, made up of two leagues, the American League and the National League, comprising a total of 30 teams.

NBA – Nation Basketball League; North American professional basketball, made up of a total of 30 teams.

NCAA Men’s Basketball – National Collegiate Athletic Association Men’s Division 1 basketball, made up of 32 Division 1 conferences involving 347 schools.

NFL – National Football League; North American professional football, made up of two conferences, the American Football Conference and the National Football Conference, comprising a total of 32 teams.

even money – a wager where the amount that can be won is equal to the amount that is bet, not counting the usual fee (vigorish or juice) that sportsbooks charge winning bets

handicap

handicapper

line

lock

percentage – a share or proportion of a whole. A percentage (%) of wins can be computed by dividing the wins by the total number of instances. Example: wins: (30); losses (10); total instances: (30 + 10 = 40); wins divided by total instances (30/40 = .75): 75%. Note: past winning records are not a guarantee of future performance.

pick

pick ’em

play

probability – the proportion to which a win or loss is likely to occur, measured by the percentage of wins to losses. See percentage.

sportsbook fee

streak – consecutive wins or losses. Don’t trust the streak.
vigorish