How does the ranking system work in CS:GO?

The CS:GO ranking system determines each player’s skill level. Players are ranked after completing a series of games and retain this ranking until the next series of games. The ranking system takes into account wins and losses, as well as individual rounds. The more wins, the higher the rank of the player. Also affect a player’s rank by his efficiency, number of kills and other factors. Players can increase their rank by playing at a high level and receive new medals and awards.