Art Peacock (80)
Yes, you’re reading that right, Arthur Peacock is eighty years old. If his age, definition, and surprisingly slick website (pictured above) aren’t enough badassery for you, here are some more tidbits. The Englishman competes against men almost a decade younger than him. He’s been competing for more than 50 years, has 55 titles to his name, and competed just five weeks after suffering a “mild” heart attack earlier this year. If that’s not a plug for perseverence, we’re not sure what is.