Wild Pitch is a statistic in baseball charged to the pitcher when a pitch is thrown beyond the ability of the catcher to handle it. It's generally deemed a wild pitch if the back catcher has to jump up or lunge for the ball. If a pitch gets away from the catcher when they should have been able to control it, it's considered a passed ball instead of a wild pitch.
More about Wild Pitches Leaders
Pitching wild pitches leaders are those who threw the most number of pitches that allowed one or more baserunners to advance one or more bases. A pitcher will generally be charged with a wild pitch (instead of a catcher being charged with a passed ball) when the official scorer rules that a pitch is uncatchable. While this is not an official rule, generally speaking if a pitcher throws a pitch in the dirt and one or more baserunners advance, a wild pitch will be charged. An above average defensive catcher will help limit wild pitches by blocking more pitches in the dirt than the average catcher, while a pitcher who throws more offspeed and/or breaking pitches than average can result in more wild pitches.