Beiker Graterol [baker / grahterol] (born November 9, 1974) is a former Major League Baseball right-handed pitcher who pitched in one game for the Detroit Tigers in 1999.

Graterol was signed by the Toronto Blue Jays as an amateur free agent in 1992.

After spending a few years pitching in the Dominican Republic, he joined the Blue Jays system in 1996 with the St. Catharines Stompers of the New York–Penn League.

[1] In 1998, he pitched for the Lara Cardinals en route to a Venezuelan Professional Baseball League championship.

"[6] However, before appearing in another game, he was demoted to the Triple-A Toledo Mud Hens on April 17,[7] never to return to the Major Leagues.