Passed ball

[2][3] If the pitch was so low as to touch the ground, or so high that the catcher has to rise out of his crouched position to get to it, or so wide that the catcher has to lunge for it, it is usually then considered a wild pitch and not a passed ball.

[2] There tends to be a higher incidence of passed balls when a knuckleballer is pitching.

[6][7] The single season record in the modern era is 35, set by Geno Petralli in 1987.

[7][8][9] The record for passed balls in a single game, six, was set by Rube Vickers in 1902 and later tied by Petralli in 1987 and Jerry Goff in 1996.

[8][10][11] The record for passed balls in a single inning is four, and is jointly held by Petralli, Ray Katt, and Ryan Lavarnway, all three of whom were catching knuckleball pitchers (Charlie Hough, Hoyt Wilhelm, and Steven Wright, respectively).