Breakthrough Collaborative operates as two dozen community-based affiliates supported by a national office. Traditionally, the Breakthrough model has consisted of two components: (1) a summer enrichment program that provides academic and social-emotional learning support to students; and (2) out-of-school-time tutoring and enrichment during the school year to keep students connected between the summer months. The study focuses on a math-focused, school-year version of Breakthrough's summer program for the 2021-2022 school year. The program was designed to offer high-dosage math tutoring and social-emotional learning opportunities--both incorporating culturally responsive education practices--to 8th-grade students. Breakthrough tutors are high school and college students and share students' racial, ethnic, and cultural backgrounds. This report is one in a series of six reports on math tutoring programs. The goal of this report series is to inform the tutoring field more broadly and support the provision of high-quality tutoring to as many students in the priority communities as possible. Breakthrough partnered with its Central Texas and Greater Boston affiliates to pilot the intervention. Both affiliates offered the program after school. The study aims to measure student-tutor relationships and sense of belonging among program participants. Also, the study aims to examine the relationship between participating in the tutoring program and students' math confidence and achievement. Each analysis uses a descriptive approach. [This report was prepared with Breakthrough Collaborative.]