Only if you were beating Cat 1s in each race
note that if the field contains mixed categories (i.e. cat 3-4), then the number of starters is the number of riders that are the same category or higher as the person requesting the upgrade (i.e. in a cat 3-4 combined field, all riders count for a 4 to 3 upgrade, but only the threes count for a 3 to 2 upgrade.)