The AKC Open level as with all levels, is judged the same. Here things get even muddier as each organization has it's upper class divided in different ways. In order to earn the Agility Dog Championship a dog must earn a total of 7 qualifying Standard legs, and a total of 5 legs each from the games classes. B. A is for dogs who have not yet earned their Agility Excellent title, and B is for dogs who are working on their Master Excellent, and Master Agility Championship titles. In the A class, no refusals are allowed, and 1 wrong course is allowed.
B allows no refusals, no wrong courses, and no table faults.
In both, time faults are assessed by multiplying each second over the SCT by 3. B performance between 85 and 99 will allow a team to earn an MX leg, but the score must be 100 in order to apply to the MACH title. JWW scoring is similar except that in Ex. B the minimum score to achieve a qualifying leg is 100. To earn the AKC MACH a team must earn 20 2Qs, qualify in both Standard B and JWW B classes on the same day, and earn a total of 750 points.