About Olympic Biathlon and Cross-country Skiing
The biathlon involves cross-country skiing and rifle shooting. There are eight categories - men's and women's sprint, pursuit, individual and relay.
Competitors can ski in any style but must not only complete the distance (from 7.5km to 20km) but also hit five targets with five bullets.
For each target missed in the sprint, pursuit and relay events, athletes ski a lap around a 150-metre penalty loop.
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