play in Premier League in following season. Unlike most other European football leagues, the league traditionally used to ran in summer, from March to November, to avoid playing games in the cold and snowy weather in winter. This was altered ahead of the 2012–13 season, with the league planning to run the season from autumn to spring. The transitional season of the competition began in early 2011 and continued until summer of 2012. After the 16 Premier League teams played each other twice over the course of the 2011 calendar year, they were split into two groups of eight, and the teams played other teams in their groups two more times for a total of 44 games (30 in 2011 and 14 in 2012). Those two groups were contested in spring 2012, with the top eight clubs playing for the title and European places. The other sides vied to avoid relegation: the bottom two went down while the next two played off against the sides third and fourth in the National Football League, with the two losers being relegated (or denied promotion). Under the current autumn-spring calendar, the league takes a three-month winter break from mid-December until mid-March. Merging the calendar with other UEFA leagues however, has increased numbers of games in winter. This has resulted in the Russian Far East and Siberian teams being forced to play more home games in hostile weather conditions which affected the Premier League when SKA Khabarovsk took part. Youth championship The Youth championship (), also known as Youth teams championship (), Reserve team tournament () or Reserves tournament (), full name Youth football championship of Russia among teams of clubs of the Premier League (), is a league that runs in parallel to the Russian Premier League and includes the youth or reserve teams of the Russian Premier League teams. The number of players a team can have on the pitch at a time that are over 21 years of age or without a Russian citizenship is limited. 16 teams participate in the league. Matches are commonly played a day before the match of the senior teams of the respective teams. All of the Russian Premier League teams are obliged to have a youth team that would participate in the Youth championship. The teams that are promoted from the National Football League and do not have a youth team must create one. The