Articles should be placed into this category using ((Infobox dual roller coaster|type2=dueling)), ((Infobox dual roller coaster|type3=dueling)), ((Infobox roller coaster|type2=dueling)), or ((Infobox roller coaster|type3=dueling)).
((Infobox dual roller coaster|type2=dueling))
((Infobox dual roller coaster|type3=dueling))
((Infobox roller coaster|type2=dueling))
((Infobox roller coaster|type3=dueling))