In the sudden death playoff for fourth seed, the Green Archers did not have three of their best players in Schonny Winston, Mike Phillips, and Kevin Quiambao.
They were paced by Nelle with 22 points, seven assists, and four rebounds but committed seven turnovers as well.
Mark Nonoy contributed 15 points while CJ Austria and Ben Phillips both produced 11 points apiece.
La Salle ends their UAAP campaign at fifth place.