The Parwa liga 2017/18 was the 94th season of the highest Bulgarian football league and the second under the reformed mode of the Parwa liga (German First League). The season started on July 14, 2017 and ended on May 24, 2018.
The 14 clubs initially played the regular season in a double round. This table served as the basis for qualifying for various placement rounds. The six best-placed clubs reached the championship round, the teams in places seven to fourteen played in the relegation round for a possible international starting place and determined the teams that took part in the relegation.
The six best-placed clubs of the regular season reached the championship round, in which, in addition to the championship, it is also about the international places in the European Cup . The champions qualified for the first qualifying round for the Champions League and the runner-up takes part in the Europa League playoffs. The third placed reaches the 1st qualifying rounds of the Europa League .
Another double round was played between the six clubs, with all results from the regular season being carried over.
The teams in places 7 to 14 of the regular season were divided into two play-off groups using the serpentine method. The two best clubs in each group qualified for the Europa League playoffs, while the two worst clubs continued to play to remain in the Parwa League .
Another double round is played between the four clubs of each group, with all results from the preliminary round being carried over.
The two best-placed clubs in each group in the play-offs as well as the third-placed club in the championship round played another starting place in the UEFA Europa League in three rounds, each with a home and away leg . The four teams from the play-offs determined in the first two rounds the club that will compete in the third round against the third-placed team from the championship round. The winner of this game will then start in the 1st qualifying round of the 2018/19 UEFA Europa League .
The two worst-placed clubs in the Parwa liga, as well as the second and third placed clubs in the Wtora liga , played in the relegation over three rounds. Initially, the last two teams competed in two games in the first round.
In the second round, the two winners and the two losers met. The winner of the winning round took 11th place and will also play in the Parwa league the following season. The loser of the losers' round finished in 14th place and was relegated.
The other two clubs played in the third round against the second and third of the Wtora league. The two winners qualified for the Parwa liga , while the losers play in the Wtora liga.
Round 1
The two group third and fourth of the relegation round played against each other crosswise.