By the way,biathlon what is it?
The biathlon is an event combining two disciplines: cross-country skiing and shooting with a 22 long rifle, which must weigh at least 3.5 kilos. Biathletes alternate between skiing and shooting (prone and standing) at 5 targets 50 m apart, each 4.5 cm in diameter for prone shooting and 11.5 cm for standing shooting. Each shooting error is penalised either by a time penalty (+ 1 min for the individual event), or by a 150 m penalty lap for the other events.