 The study of optimal best practice, which involves maximizing a person's state of functioning while maintaining a motivational mindset, is an interesting area of research. It has been shown to be beneficial in terms of academic performance, as well as in other areas such as physical education. This study examined the relationship between optimal best practice and academic engagement among pre-service teachers in Spain. Results showed that optimal best practice was associated with higher levels of academic engagement, suggesting that it can be used as a tool to improve student performance. Additionally, the study found that pessimistic attitudes had a negative effect on optimal best practice, indicating that these attitudes may hinder optimal best practice and thus impede academic success. This article was authored by Antonio Granaro Gallegos, Huey P. Fawn, and Bing H. Ngu.