Usain Bolt

by Sean Gregory

by Rachel Lewis / London

by Kevin Lui

by Daniel White

by Sean Gregory and TIME Video

by Sean Gregory and TIME Video

by Marisa Gertz

by Sean Gregory / Rio de Janeiro

by Ashley Hoffman

by Myles Little and Chelsea Matiash

by Andrew Katz

by Sean Gregory / Rio de Janeiro

by Kate Samuelson

by Abigail Abrams

by Rishi Iyengar