The subject of Physical Education, Sports, and Health (PJOK) has a significant contribution in building the physical fitness condition of students, considering that physical fitness is the basic foundation that supports their growth and development and daily activities. However, in practice, physical fitness learning in schools still faces a number of obstacles that need to be considered, such as low student involvement and the lack of variety of learning models that are able to provide comprehensive involvement in a comfortable and enjoyable learning atmosphere. The purpose of this study was to examine the effectiveness of the implementation of the Teams Games Tournament (TGT) model based on the moving color zone game in PJOK learning on the physical fitness of class VIIIB students of SMP Negeri 13 Malang. The method used was Classroom Action Research (CAR) with two cycles, where each cycle included the planning, implementation, observation, and reflection stages. The research subjects were 32 students. Measurements used the Indonesian Physical Fitness Test (TKJI) instrument which was analyzed through quantitative and qualitative techniques. The results showed the development of students' physical fitness from the pre-cycle of 53.88%, to 64.63% in cycle I, and reaching 79.75% in cycle II. These findings confirm that the implementation of the Moving Color Zone game-based TGT model successfully fosters active, competitive, and enjoyable learning, positively impacting students' physical fitness achievements. Therefore, this model is worthy of consideration as an innovative alternative for physical fitness instruction in schools.