Out of all the research I have done, vet’s I’ve talked to and just experience, this is the one chart I find the most accurate as a guide to follow. Unlike a lot of breeds, Ridgebacks develop at a very slow pace. It’s very uncommon for them to reach maturity until they are at least a year old and even after that many Ridgeback’s are not 100% grown, with the proper muscle mass to support their structures until they are around 2 years old. For your puppies wellbeing, please don’t put your dog on a strenuous exercise program or turn them into a running partner until closer to 18 months of age.  

This is not my own chart and the credit belongs to Puppy Culture, www.puppyculture.com