Hiroyuki Kobayashi, Japanese professional baseball player. Achievements include being a member of the Japan All-Star Team (2002, 2004, 2005); being winner of the 2005 Japan Series Championship; being a member of the first place Japanese International team in the first ever Baseball World Classic 2006. Recipient Inter-League Most Valuable Player, 2005.
Kobayashi, Hiroyuki was born on June 4, 1978 in Kusaka, Japan.
He played in the 2006 World Baseball Classic for Japan. As a relief pitcher Kobayashi throws a fastball that sits in 87-91 mph (tops out at 93 mph), silder, change-up, and an effective forkball as his out pitch.