Let's make this birthday one to remember.

43 years old (Born on September 10, 1981)

Happy Birthday, Julie Culley! You're still running circles around the rest of us—even if we're just trying to catch up to your incredible Olympic pace. From conquering the 5,000 meters at the 2012 London Olympics to representing Team USA at the World Championships in 2009, you've always made it look easy (and left us breathless!).

Here's hoping this birthday brings you as much joy and laughter as your races brought excitement and pride. May you continue sprinting through life with grace—and may all your future victories involve fewer laps but plenty more cake! Happy birthday, champion!