According the CovCath football website. 8 seems about right to me. I believe there were a couple playoff matchups. I remember the one CCH loss, I believe it was in 2000, third game of the season. CCH looked like world beaters up to that point, having beaten (at the time) nationally ranked St. X in the LexCath bowl, and then beating Boone pretty good.
Not sure when the other loss was.