Originally as the Arellano Flaming Arrows, the team won the National Student's Championship (NSC) in the 1970s. 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. In a repeat finals appearance in 2007, head coach Leo Isaac finally led the Chiefs to the championship with a 67–64 game three win against the EACGenerals. 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. The then Baby Chiefs also defeated the Olivarez College juniors team in their own title series to ensure both NCRAA basketball titles would go to their Juan Sumulong Campus.
Meanwhile, the Mapua Lady Cardinals turned back the ArellanoUniversity Lady Chiefs in four sets, 14-25, 25-23, 25-17, 25-22, for their second win against two losses. Arellano ...
In the men's division, defending champion Perpetual HelpAltas will try to bounce back from a 5-set setback to the Arellano Chiefs when they battle the EAC Generals at 3 p.m.