On April 20 , 2006 –  At Petco Park in his first at-bat of the season, Kaz Matsui hits an inside-the-park round tripper, making it the third successive season in which the Mets second baseman has hit a home run in his initial plate appearance of the year. Ken Griffey Jr. also accomplished the feat starting in 1997 with the Mariners but had walked before going deep.