Baseball / Rules & History / St. Louis Cardinals #57 Bob Gibson's 1.12 ERA in 1968 led to what rule change? AThe designated hitterBA pitch clockCThe pitcher's mound was loweredDBigger bases Answer: The pitcher's mound was lowered MLB lowered the mound from 15 to 10 inches for 1969. Source Show the answer Share #56 Play this week's quiz #58
