NCAA Season 66 basketball tournaments

The season started on August 5 at the Ninoy Aquino Stadium and ended with the Mapua Cardinals breaking the 16-year cycle and won the seniors crown, dethroning the defending champion San Sebastian Stags.

[1] Mapua Cardinals was on a verge of a two-round sweep and an outright title after scoring four straight victories in the second round.

The Stags captured the second round championship by completing a five-game sweep, thus arranging a best-of-three title playoffs with the Cardinals.

Letran Squires completed a two-round sweep in winning back the Junior title they last held in 1985.

The Squires were first round winner when JRC Light Bombers were stripped of the pennant for fielding an ineligible player.