At 13, Yu is already making waves in world swimming, with plenty of room still to grow.

It's the kind of timing you'd expect from the fastest oil change record – not swapping a Ford Escort's inline-4 out and back ...

Josh Kerr broke the mile world record earlier this year. Illustration: Dan Goldfarb / The Athletic; Harry Murphy / Getty Images Peak newsletter 🧠 | This is an excerpt from The Athletic’s weekly ...