He was selected seventh overall pick in the 2017 PBA draft by Rain or Shine Elasto Painters.

[1] In his PBA debut back on December 22, 2017, Nambatac recorded 5 points and 5 rebounds in almost 13 minutes of playing time on an 82–79 win over the TNT Katropa.

[2] On November 3, 2021, Nambatac signed a new three-year maximum contract with the Elasto Painters.

[5] On July 2, 2024, he was traded to the TNT Tropang Giga for Kib Montalbo, Jewel Ponferada, and a future draft pick.

This biographical article relating to a Filipino basketball figure is a stub.