A funny story regarding rank and UNC-CH. When NCSSM opened their doors in 1980 I guess NOT ranking students must have been rare. It seems that the Admissions Office at UNC-CH required a value for HS Rank in their system. Apparently they just filled in a random number if none existed. My roommate found this out when he was graduating from UNC-CH and applying to grad school. I’m not sure of the details but requested his records and it listed a HS Rank on it like 56% or something strange. He contacted the Registrars office and they eventually figured out that practice and he had to fight to get it removed.
I would hope with today’s environment they can handle schools that don’t rank now.