Chylak worked the first American League Championship Series in 1969. On June 4, 1974, he was on the field in Cleveland for "Ten Cent Beer Night". The Cleveland Indians had been struggling with low attendance figures, resulting in this promotion that attracted more than 25,000 fans to the game. Fans became unruly and incited fights with the players, sometimes pouring beer on them. Chylak declared the game a forfeit after he sustained a facial wound from being hit with a chair.