Although the pit bull and the lion are both fighters and can be extremely vicious, if a pit bull were to fight a lion, the lion would win. Lions are bigger, stronger, faster and more agile than pit bulls.
When it comes to speed, size and strength, lions are superior to pit bulls. Lions are the second largest cat after the tiger. A lion can stand up to 6 feet tall when on its hind legs and can weigh up to 420 pounds. A pit bull, on the other hand, can be up to 5 feet 7 inches tall, but the average pit bull only weighs around 60 pounds. A lion can run up to 50 miles per hour, while a pit bull can only reach speeds of 30 miles per hour. This means that if a pit bull tried to outrun a lion during a fight, the pit bull would lose.
Pit bulls can be fighters and at times are vicious animals, but they don't pose a threat for lions. It would not be wise to attempt to test this theory, however. Both animals will attack if they feel their life is in danger, so testing the theory could endanger humans.