Aaron Peirsol Sets 200 Metre Backstroke Record On this day, in 2009 American Aaron Peirsol set the 200 metre backstroke record at the World Championships in Rome, Italy. July 31, 2009 Sport: Swimming Trivia Which Nations Won the Gold, Silver and Bronze Medals the Last Time Baseball Was an Olympic Sport? What Are the Five Events That Make Up the Modern Olympic Pentathon? sports in this article Swimming tags in this article Fan On This Day SportsEngine