Starting this season Liga 2 was an under-25 tournament (born on or after 1 January 1992), with a maximum of five overage players allowed.
This arrangement was made to reduce the large number of participants (61) in 24 teams in the 2018 season.
[67] On 26 July 2017, Pro Duta announced to exit from the competition after 8 matches.
Unlike other groups who played their match on home and away basis, Group 8 was contested as a double round-robin tournament held at Gelora Delta Stadium, Sidoarjo.
[9][74] Persifa withdrew from the competition after the management did not submit the player list and could not be contacted in a day before their first match.
[80] This match stopped in 86' due to dissatisfaction to referee when PSBK was leading 1–0.