National Producer Number definition, categories, type and other relevant information provided by All Acronyms. NPN stands for National Producer Number Search for acronyms, abbreviations,
Height Considerations. There are no height limits for jockeys. However, jockeys tend to be shorter than normal to meet the weight guidelines. The average height for a jockey is between 4 feet 10 inches and 5 feet 6 inches.eight Limits. Depending on specific race and track guidelines, a jockey must weigh between 108 and 118 pounds without clothing and equipment, which can add a significant number of pounds.
He was quite skinny as you could imagine. Jockeys should weigh approximately 110 pounds and apprentices (rookies) 105 pounds or less. If you are already much heavier then that, for your health, please reconsider the idea of wanting to be a jockey.o at age 13, I said goodbye to my childhood and dedicated my life to what it takes to be a jockey. I was racing professionally by age 16, which is a very young age by todayâs standards. Almost every country in the world that has horse racing, has a jockey school or some sort of training program.