Let's make this birthday one to remember.

38 years old (Born on August 07, 1986)

Happy birthday, Paul Biedermann! Still swimming circles around the competition—rumor has it even dolphins watch your freestyle videos to learn techniques. From conquering world championships to setting phenomenal world records, your feats in the pool make the rest of us feel like we're simply splashing about.

Your legendary races at Rome 2009 World Championships remain unforgettable—when you smashed those records, we’re pretty sure even Poseidon himself clapped in awe. Here's hoping your birthday celebrations today are as fantastic and timeless as that unstoppable freestyle stroke of yours. Keep making waves (and medals!), champ!