Roi Et's first season in Division One saw them finish fourth-from bottom, two points from safety, resulting in relegation straight back to Division Two.[3] Following league reorganisation in 2017, the division was renamed League 4. The club were excluded from the league the following year after failing to obtain a licence from the Thai FA.[4] However, they were subsequently rebranded as Roi Et CF and allowed to enter the North Eastern Region of the Thailand Amateur League for the 2018 season.[5]
Note: Flags indicate national team as defined under FIFA eligibility rules; some limited exceptions apply. Players may hold more than one non-FIFA nationality.