ATENEO trounced National University, 76-49, on Saturday to complete a sweep of the UAAP Season 77 juniors tournament eliminations at the Blue Eagle Gym.
Mike Nieto finished with 29 points and 10 rebounds for the Blue Eaglets, who advanced to the finals outright with a thrice-to-beat advantage.
Adamson and De La Salle-Zobel, meanwhile, clinched berths in the stepladder phase.
The Baby Falcons beat University of Santo Tomas, 76-67, to complete their revival after winning only one game last season, while the Junior Archers defeated Far Eastern University-Diliman, 59-55, to claim the last seat in the next round.
Adamson, NU, and De La Salle-Zobel ended up with similar 9-5 win-loss records at the end of the eliminations.
The Baby Falcons and Bullpups will battle in a playoff for the No. 2 seed in the stepladder phase due to superior quotients with the Junior Archers settling for the fourth seeding.
The Adamson-NU playoff will be played on Tuesday at the Blue Eagle Gym.
In the stepladder phase, the No. 3 and No. 4 teams play a knockout game for the right to face the No. 2 seed, which will have a twice-to-beat advantage.
In the other game, University of the Philippines Integrated School beat University of the East, 93-65.
Team standings: Ateneo 14-0, Adamson 9-5, NU 9-5, DLSZ 9-5, FEU 8-6, UST 5-9, UPIS 2-12, UE 0-14.