Former Sehome High School baseball coach Gary Hatch is going into the Washington Interscholastic Activities Association Hall of Fame as part of the Class of 2018. Hatch coached the Mariners from 1980 to 2015 winning 532 games and three state championships.  Hatch also coached for USA Baseball’s U-16 teams in 2006 and 2007. He will be honored May 2nd at a luncheon at the Renton Pavillion Events center.