Celebrating the 33 years of Institute for Research and Development (IRD) of Sukhothai Thammathirat Open University (STOU), the IRD Open House 2025 was organized on 8 April 2025 at Seminar Building I. Asst. Prof. Dr. Phanompatt Smitananda, Acting President of STOU, presided over the event. The event aimed to promote and create a research atmosphere at the university. It also serves to increase knowledge and develop the creation, dissemination, and support of research works at both national and international levels for personnel.
The activities included lectures, academic research discussions, and the presentation of the STOU Research STAR awards for 2024.
| Category | Individual Prize | Organizational Prize |
| Most Published Researcher (National Level) | Assoc. Prof. Dr. Wittayatorn Tokeaw | School of Educational Studies |
| Most Published Researcher (International Level) | Asst. Prof. Dr. Chalermpon Jatuporn | School of Agriculture and Cooperatives |
| Most Cited Researcher (International Level) | Asst. Prof. Dr. Ajjaree Limpamont | School of Agriculture and Cooperatives |
| Most External Funded Researcher | Asst. Prof. Dr. Supatra Phanwichit | School of Law |
| Highest Number of Research from External Funding | Assoc. Prof. Dr. Wittayatorn Tokeaw | School of Communication Arts |
| Highest Participation with IRD | Miss Tuenta Pornniponpaisan | Office of Educational Technology |
| Most Viewed Research | Assoc. Prof. Dr. Thasothorn Tootongkam | School of Educational Studies |
