John Patrick "Jack" Perconte (born August 31, 1954) is a former second baseman in Major League Baseball who played from 1980 to 1986. At the age of 26, on September 13, 1980, he debuted with the Los Angeles Dodgers. His most productive seasons were with the Seattle Mariners during which he hit a combined .281 and stole 60 bases in 68 attempts.
In addition to his Major League baseball career, Perconte has authored two books - "The Making of a Hitter- A Proven and Practical Step-by-Step Baseball Guide" and "Raising an Athlete- How to Instill Confidence, Build Skills and Inspire a Love of Sport". Jack turned to writing to further help athletes and parents have enjoyable baseball and sports’ experiences. Jack’s two websites give advice on baseball and parenting.
As of 2009, Perconte was the Director of Baseball Operations at Velocity Sports Performance in Warrenville, Illinois, where he oversaw the baseball program and ran training camps.