On May 6, 2015 ā Bryce Harper becomes the youngest player (22 years, 202 days) to hit to three homers in one game in 45 years when he goes deep three times in Washingtonās 7-5 win over the Marlins at Nationals Park. In 1969, Red Sox right fielder Joe Lahoud accomplished the feat at Minnesotaās Metropolitan Stadium, being 149 days younger than the Natsā slugger.