Thomas Sumter Academy competes annually in various academic competitions at the local, regional and state levels.  A few examples are as follows:

• High School Math competitions are held within SCISA (South Carolina Independent School Association) and at local colleges and universities
• Science Fair competitions are held within the school and at the state level
• Literary Meet includes competitions in Oral Interpretation, Extemporaneous Speaking, and Essay 
• High School Drama team participates in a one-act play competition