Check out A beginner’s visual guide to Biathlon by my former teammate and 2014 Olympian, Hannah Dreissigacker.

Biathlon the most watched winter sport in Europe, with the annual BMW World Cup race series attracting hundreds of millions of viewers. Biathletes race 6-20km on cross-country skis, lapping through a stadium several times to shoot a .22 caliber rifle at five targets 50 meters away. For each missed target, athletes have to ski an extra 150m penalty loop before heading back onto the course, resulting in a dramatic setback of about 25 seconds.