The need to assess and understand students' strengths in choosing their future careers is essential. Aptitude exams like the National Career Assessment Examination (NCAE) and Academic performance via Grades are important data used as the basis for determining student career strength. This study employed descriptive-correlational research, where secondary data were used. The analysis of NCAE results and the academic performance of Grade 10 students were performed in this study. An Independent Sample T-test was also used to determine the significant difference in the two aptitudes/tracks; Technical-Vocational (T.V.) and Academic Track (AT). The study revealed that the majority of the students performed above average and average levels across all domains. Natural Science, Spiritual Vocation, and Science were the students' most preferred careers/occupations. The results also showed a weak positive association between Mathematical Ability and Math performance. However, an insignificant relationship was observed on the two sets of variables; the Science Grade and Scientific Ability scores, and the English Grade and Reading Comprehension and Verbal Ability scores. The study revealed that students have higher AT scores than T.V.; thus, identified as the students' career strength. Evaluation and monitoring program with provisions to motivate students to perform better in the National Standardized Exams is recommended in the study. [This paper was presented in the 4th International Conference of Science Educators and Teachers (ISET), Khon Kaen, Thailand: Science Education Association (Thailand) (SEAT). ]