The club started in the Primera División, fifth tier, and played its first official game on 19 October 2017 in Avilés, beating Colegio San Fernando by 65–72.

[2] However, Círculo Gijón did not achieve promotion to Liga EBA after being defeated in the league semifinals by the reserve team of Oviedo CB.

Despite this failure, the club required and finally achieved one of the eight places that would be created after the expansion of the LEB Plata, third division, to 24 teams.

[4] However, Círculo Gijón could not avoid relegation to Liga EBA at the end of the season, after an irregular performance.

Círculo Gijón remained in the league as a result of a swap of places with Baskonia B, that finished one position over the geometrics.