Let's make this birthday one to remember.

69 years old (Born on February 13, 1956)

Happy Birthday Yiannis Kouros, the unstoppable running legend whose legs probably still haven't figured out that humans occasionally need rest! Rumor has it you're celebrating by casually breaking another record just to remind the younger runners who's boss. After all, anyone who can smash every outdoor road world record from 100 miles all the way up to 1,000—and dominate virtually every time span between 12 hours and six days—surely deserves an extra helping of birthday cake (with carbs, obviously!).

Here's hoping your special day is paced perfectly—not too fast nor too slow—but unforgettable enough for your next endurance feat: blowing out more candles than most mere mortals have run marathons. Cheers and happy running into yet another victory lap around this spinning planet!