Complex sentence: The band has also won the 2015 Georgia Marching Band Series, which consisted of three total wins in the Thomson Bulldog Invitational, Grovetown Warrior Invitational and the Georgia Marching Band Series Finals.
Split into simpler sentences: The band has also won the 2015 Georgia Marching Band Series. Which Consisted of 3 total wins Thomson Bulldog invitational, Grovetown Warrior Invitational and the Georgia Marching Band Series Finals.