In 1975, LaCock hit the only grand slam of his career during the final appearance of St. Louis Cardinals pitcher Bob Gibson.

LaCock was selected by the Chicago Cubs in the first round (20th pick overall) of the 1970 January Draft-Regular Phase out of William Howard Taft Charter High School.

[3] In 1989, LaCock played for the St. Petersburg Pelicans and Winter Haven Super Sox of the Senior Professional Baseball Association.

[7] In 2012, LaCock served as head coach of the Cronulla Sharks baseball club, in the New South Wales major league competition in Sydney, Australia.

[2] Since his retirement from baseball, LaCock has competed in several marathons and triathlons, many of which raise funds for the Leukemia Society of America.