 The club made 12 consecutive season appearances in the top-tier level Greek Basket League, during the 1970s and 1980s period, from the 1975–76 season, to the 1986–87 season.The club also competed in the 3rd-tier level European-wide competition, the FIBA Korać Cup, in both the 1979–80 and 1984–85 seasons.On January 24, 1981, Ionikos Nikaias, led by a then 22-year-old Giannakis, played against Aris Thessaloniki, which was led at the time by Nikos Galis.