In 1985, Whitaker set a record for Detroit second basemen with 21 home runs and, in 1986, was a member of a Tigers infield in which every member hit at least twenty home runs. He hit a career-best 28 homers in 1989, one of four times he reached the 20-HR plateau, upping his record for the most homers in a season by a Tiger second baseman. Whitaker now shares the season record with Ian Kinsler, who hit 28 homers in 2016 as the Tigers regular second baseman.