小侯_bili:What is Biathlon
This sport has its origins in an exercise for Norwegian people, as an alternative training for the military.
The complete rules of biathlon are given in the official IBU rule books.
A biathlon competition consists of a race in which contestants ski around a cross-country trail system, and where the total distance is broken up by either two or four shooting rounds, half in prone position, the other half standing. Depending on the shooting performance, extra distance or time is added to the contestant's total running distance/time. The contestant with the shortest total time wins.
For each shooting round, the biathlete must hit five targets; the skier receives a penalty for each missed target, which varies according to the competition rules, as follows: