This study describes a strengths-based blended personalized learning model, the implementation of the model over a 4-year period, and the results of an impact study focused on measuring its effectiveness. The model includes many commonly-used features of personalized learning, including (a) competency-based progressions, (b) flexible learning environments, (c) personal learning paths, (d) frequently updated student profiles, and (e) frequent informal and formal measurement. However, it differs from other personalized learning models by including a focus on strengths-based learning. Strengths-based learning identifies and builds upon students' strengths, supporting their ability to make informed decisions when setting goals and choosing and implementing learning experiences. The longitudinal study took place in a diverse mid-size pre-K to Grade 8 school district in California. The findings suggest that the strengths-based blended personalized learning model is effective in supporting student learning in the academic areas of mathematics, reading, and language usage. Over the 3-year period in which the intervention was gradually implemented, and one year of full implementation, students significantly outpaced their matched student counterparts in all subject areas. The results of the current study further the growing literature in the field of personalized learning by contributing learnings and evidence related to a successful personalized learning model.