In 1894 the two top Bulldogs, King Orry and Dockleaf, competed in a contest to see which dog could walk 20 miles (32 km). King Orry was reminiscent of the original Bulldogs, lighter boned and very athletic. Dockleaf was smaller and heavier set, more like modern Bulldogs. A 2013 UK vet clinic survey of 26 Bulldogs puts the median lifespan at 8.4 years with an interquartile range of 3.2–11.3 years. The UK Bulldog Breed Council website lists the average life span of the breed as 8–10 years.Statistics from the Orthopedic Foundation for Animals indicate that of the 467 Bulldogs tested between 1979 and 2009 (30 years), 73.9% were affected by hip dysplasia, the highest amongst all breeds. Similarly, the breed has the worst score in the British Veterinary Association/Kennel Club Hip Dysplasia scoring scheme, although only 22 Bulldogs were tested in the scheme.
3.2–11.3 years. 8.4 years 8.4 years with an interquartile range of 3.2–11.3 years.
3.2–11.3 years. 8.4 years 8.4 years with an interquartile range of 3.2–11.3 years.