Follow-Ups to Answer from Expert Tom Schott

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baseball3412 wrote at 2007-07-31 05:49:19
the height may be changed only if heavy rain fall starts then stops and washes away the mound from 10 in to say 8 inches the mound may be changed to a height of 12 inches says the regulation rules of the major league baseball association and the height if no rain fall may not be changed and yes the height is set to a minimum of 10 inches

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jimiwhitten wrote at 2009-04-12 20:40:10
Look at the season Bob Gibson had in 1968 and you will see that they lowered the mound three inches because of him.  As far as I know he is the only person that has caused a change in the shape of the field.  He had an ERA of 1.12, the manager never went to the mound and took him out of the game, not once - he was pulled for a pinch hitter a few times.

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