Years later, the Chiefs entered the best-of-three finals in the men's basketball division of the NCRAA in 2006 when they were defeated by the Saint Francis of Assisi College Doves.

The Chiefs relied on their defense to stop EAC's Ronjay Buenafe, while supporters of the rival teams had to be restrained inside the Rizal Memorial Coliseum.

In the PCC, they defeated UCN Golden Dragons in the first round, but they were eliminated in the quarterfinals by three-peat NCAA champions San Beda Red Lions.

[5] With the departure of Philippine Christian University (PCU) Dolphins after exposure of several juniors' players enrolling with forged documents, the NCAA originally opened its doors for new members, and Arellano was one of the schools that lodged their application.

Women's Men's Juniors The chess team of Arellano University has bagged two straight championships, being one of the top contenders in the area of this sport.