They immediately won the Dutch amateur championship after defeating CBV Binnenland in the league final.

[4] In 2012, Apollo club decided to enter the professional Dutch Basketball League (DBL) for the 2012–13 season.

[5] In its first season, led by coach Tyrone Marioneaux and All-Star Aron Royé, Apollo finished in ninth place in the DBL.

During Apollo's most successful season since their establishment, the club had financial problems which made it close to withdrawing from the DBL.

[6] In the 2015–16 season, Apollo made its second appearance in the DBL playoffs where it lost to Den Bosch 0–2 in the quarterfinals.

However, in a packed Apollohal, Leiden retrieved home advantage and went on to beat Apollo 1–2 and advance to the semifinals.

[10] In June 2023, following the 2022–23 season, Apollo was forced to withdraw from the BNXT League as it was unable to come up with the necessary budget for participation.