Youngest Man to Win US Tennis Open Match On this day, in 1987 15-year-old Michael Chang became the youngest player to win a main draw match at the US Open when he defeated Paul McNamee in four sets. September 1, 1987 Sport: Tennis Trivia What Are the Five Events That Make Up the Modern Olympic Pentathon? Which Nations Won the Gold, Silver and Bronze Medals the Last Time Baseball Was an Olympic Sport? sports in this article Tennis tags in this article Fan On This Day SportsEngine