Chloe Esposito won gold in the women’s modern pentathlon ( running, shooting, horse riding, swimming and fencing) at the Rio Olympics, Australia’s first ever medal in the event.

But, if like the rest of Australia you were very confused when Esposito stopped in the middle of an 800m run to pick up a pistol, do not worry.

Here is what you need to know about the modern pentathlon:

Source: ABC News