Genesee Region Hall of Famer Fred Gravanda added to his long list of honor scores on Friday night by rolling a pair of 300 games en route to an 836 series in the County Line Stone Trio's League at Mancuso Bowling Center. The 71-year-old right-hander opened with a perfect game, posted eight strikes in a 236 and then rolled another 300 game for the big series, which is his 14th