Stat used to calculate a QB's passer rating

ATT

Hint: This three-letter abbreviation represents how many times a quarterback throws the ball in a game. (This hint guides the solver toward the concept of pass attempts without directly stating the answer or repeating the original clue.)

Clue: "Stat used to calculate a QB's passer rating" Answer: "ATT" Explanation: In American football, a quarterback's (QB) passer rating is calculated using several statistics, one of which is attempts (ATT)—the number of passes thrown by the QB.