The Lady Knights won both doubles matches with individual state champions Haley Fulford and Sarah Schatz winning their match at number one.
Deerfield-Windsor's number two doubles won with Sara Barge and Mary Virginia Hogan.
Southland boys, Tiftarea boys and Valwood girls also falling in the semifinals.
Class A, Westwood girls and Terrell Academy boys both finish state runner-up.
Oak Mountain defeated Westwood in the girls championship 3-1.
Oak Mountain boys beat Terrell Academy 3-0.