How fast is a Neapolitan Mastiff in AKC Fast CAT? Below are the fastest Neapolitan Mastiffs for 2026, ranked by speed in the 100-yard dash.. Browse Neapolitan Mastiff Fast CAT rankings by year and see where your Neapolitan Mastiff would place.
See full AKC Fast CAT speed rankings — by breed, by year, and all-time — on Dash-Hound.