And last season , two dozen pitchers hit the 100 - m.p.h. mark at least once -- more than double the number who reached triple digits back in 2008 .
By 2015 , the 95 - m.p.h. club nearly quintupled : 54 pitchers averaged at least that speed .
Last season , two dozen pitchers hit the 100 - m.p.h. mark at least once -- more than double the number who reached triple digits back in 2008 .
By 2015 , the 95 - m.p.h. club nearly quintupled : 54 pitchers averaged at least that speed .