Nyakach Girls saw off Lions High School 5-0 and Sinyolo Girls 34-0 in their preliminaries.
Meanwhile, Maseno were crowned champions on Saturday after narrowly edging out Otieno Oyoo High School 7-0 in a tight-physical match played at the Maseno rugby grounds.
Winston Ngulu converted the try for a 7-0 lead, a score they defended until the sound of the hooter as they retained their Kisumu County rugby sevens title.
Despite the defeat, both Maseno School and Otieno Oyoo have qualified for the Nyanza Region finals slated to be played in Kisii.