Sponsored Content SportsEngine, a brand from NBC Sports Next is the leading provider of Sport Relationship Management (SRM) software, empowering athletes, parents, coaches, and sports organization administrators with tools and services to manage their organizations and sports lives. Read SportsEngine stories Carl Yastrzemski Hits His 400th HR May 13, 2021 | 0 minutes, 26 seconds read On this day, in 1965 Carl Yastrzemski became the 18th major-league hitter in MLB history to reach the 400 home run mark, Yaz was 39 years old at the time. July 24, 1965 Sport: Baseball Trivia sports in this article Baseball tags in this article Fan On This Day SportsEngine