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Mark Grater Biography

Mark Grater
Mark Grater
  • Born Jan. 19, 1964

Grater attended Monaca High School in Monaca, Pennsylvania and began his college baseball career at the Community College of Beaver County.
As of 2011, Grater was in his eighteenth year as a pitching coach and was working for the Washington Nationals as their pitching rehabilitation coordinator. Prior to the 2021 season, he was named Washington's rehabilitation and Dominican Republic pitching coordinator.


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