Bulgaria

Foundation

The first football championship in Bulgaria was held in 1924 as a knockout tournament. It was organised by the Bulgarian National Sports Federation (BNSF). The six inaugural teams were Vladislav Varna, Orel Vratsa, Levski Sofia, Krakra Pernik, Pobeda Plovdiv and Chernomorets Burgas, each having won and representing its regional sports federation, called sportna federatsiya. The championship was abandoned, because of a dispute between Vladislav and Levski over the replay of the final game. In the following 1925 season, SK Vladislav became the first champion of Bulgaria. The championship was reorganised for three seasons, from season 1937–38 to 1939–40, ten teams participated in a round-robin tournament, called the National Football Division.

A Republican Football Group

The inaugural season of the A Republican Football Group began in the autumn of 1948. The ten teams participating in the league were Levski, Septemvri, Lokomotiv, Slavia and Spartak from the capital city Sofia, and Botev Varna, Botev Burgas, Slavia Plovdiv, Marek Stanke Dimitrov, Benkovski in a spring-autumn cycle like in the Soviet Union. In the autumn of 1949, qualification tournaments were played to determine the teams that would play in the next 1950 season. In the next two seasons the number of teams in the league was increased to 12, and for the 1953 season there were 15 teams (the 16th team was the Bulgaria national team). In seasons 1954 and 1955 there were 14 teams in the league, and in seasons 1956 and 1957 there were 10.

In 1958, the championship was again stopped after the spring half-season, as had happened in 1948. New re-organizations were accepted and the league was again going to be played in the autumn-spring format. Despite the fact that the teams had played just 1 match, CDNA was crowned as the champion of Bulgaria.

The frequent changes in the number of teams in A Group continued in the 1960s. In the first two seasons after the reforms in 1958, the number of teams in the league was 12, in the period 1960–1962 – 14, until season 1967/68, when the teams were 16.

There were new reforms at the end of the 1960s. There were many mergers between Bulgarian clubs. The most-famous are between CSKA Red Flag and Septemvri Sofia in CSKA September Flag, the capital teams Levski and Spartak in Levski-Spartak, Lokomotiv and Slavia in Slavia, the Plovdiv teams Botev, Spartak and Academic in Trakiya. Mergers happened between other Bulgarian clubs too. These mergers between clubs and reforms in A Group were made at the winter break of the 1968/69 season.

After the winter reforms in 1968 until 2000, A Group remained with 16 teams, except in seasons 1971/72 and 1972/73, when 18 teams competed in the league.

Premier Professional Football League

The Bulgarian Football Union decided to make reforms. The Premier Professional Football League, created in the autumn of 2000, had 14 teams participating in it. At the end of the 2000/01 season, the last two teams were directly relegated to the lower division and the team that finished 12th had the chance to compete in the promotion/relegation play-off for the remaining place in the league. Levski Sofia became champions in the first season of the Premier League.

In the 2001/02 season there was experimentation with the regulations. The championship was divided into two phases. In the first phase the teams played a regular season, each team playing twice against all the others, once home and once away. The second phase was a play-off phase.

In the following season, 2002/03, the championship returned to the regulations of 2000/01 – 14 teams playing in a home and away format. For the first time in 6 years, CSKA Sofia became champions.

A Group

The Bulgarian A Professional Football Group was created in 2003. The group was formed by 16 teams, each playing twice against all the others, once home and once away. In the first season of the newly created A Group, the 2003–04 season, for the first time in history, Lokomotiv Plovdiv became champions, finishing with 75 points. In 2004–05, CSKA Sofia won A Group for the 30th time.

For the next two seasons, Levski Sofia were champions under manager Stanimir Stoilov. From 2005–06 the league's name has been A Football Group. In 2007–08, CSKA became champions of A Group for a record-breaking 31st time without a loss out of 30 matches. But in the summer, UEFA didn't give a licence for the club to play in the UEFA Champions League qualifying rounds and Levski Sofia entered to play in the tournament instead of CSKA. In the following season Levski Sofia won their last A Group title, finishing one point ahead of CSKA. Later on, two consecutive seasons Litex Lovech won another two titles like in 1997–98 and 1998–99. In 2011–12, after winning promotion from B Group, Ludogorets Razgrad became the second team after Litex to win the A Group in their first season.