What’s it like to win a gold medal? Here’s how this world record holder describes it

He’s already considered the fastest man in the world, and with hopes of winning two more gold medals this week, Alexandria’s Noah Lyles is speeding through the Olympics with exactly the kind of confidence needed to attain the goals he has.

There aren’t many people in the world who can relate, but Andrew Valmon — who used to coach the U.S. Olympic track team, and is the current track and field coach at the University of Maryland — is one who can.

Before he coached the U.S. team in 2012...