Teachers performance can have a significant impact on the proficiency levels of their pupils. The study aimed to determine the (1) teachers performance (2) pupils level of English Proficiency and (3) relationship of teachers performance towards pupils English proficiency. The respondents were the selected thirty-eight (38) teachers and ninety-one (91) pupils from schools in Legislative I District in the Division of Cagayan de Oro City Year 2021-2022. The researcher used Universal Sampling Method that is, all the teachers as well as their pupils that were included in the conduct of 2022 the Regional Achievement Test (RAT) were taken as respondents of this study with the total of one hundred twenty-nine (129). It employed a descriptive correctional method of research. Data were gathered through the process of documentary analysis. Statistical treatments such as mean, standard deviation, and Pearson Product Moment Correlation Coefficient were used in presenting and analyzing of data. Results showed that the majority of the teachers Level of Performance is at Very Satisfactory Level while the majority of the pupils level of English proficiency was at a nearly proficient level. A significant moderate positive relationship between the teachers performance and pupils proficiency was also registered. The researcher recommends that the teachers may continue in enhancing their knowledge and skills in teaching to have much better strategies and performance that will also benefit the pupils proficiency.