Three-and-out Percentage is a measure of the rate at which a teams drives end as three-and-outs, which is calculated by taking a teams total three-and-outs and dividing it by the total drives of the team.
A drive is a series of plays by a team that only ends when a team turns over the ball, scores or the game ends while a three-and-out is a drive that end after a team is unable to gain a first down in the first three plays of a drive.
More about Three-and-out Percentage
A lower Three-and-out Percentage suggests that a team is able to maintain possession of the football longer instead of quickly punting the ball away to the opposition. A higher percentage can indicate a teams offensive difficulty getting possessions off to a good start, or maintaining a sustained offense.