Play-off participants for promotion/relegation:

From first level # 16
From second level # 3, # 4 and 4 period winners
Period winner is the best team from round 1 - 9, round 10 - 19, etc ...

Play-off schedule :
From the participants of the second level : the team highest in the final table is # 1, etc ...

Round 1 :
A) # 3 - # 8
B) # 4 - # 7
C) # 5 - # 6

Round 2 :
D) winner A - winner B
E) winner C - # 16

Final :
F) winner D - winner E

Winner F will play at first level, others at second level