Blueprint Schools Network is a nonprofit organization providing educational services to schools and students. The goal of Blueprint's hybrid math tutoring program is to ensure that all students receive the math instruction necessary to rise to their full academic and social potential. Blueprint aims to level the playing field so that every student, regardless of race and family income status, has access to high-quality instruction and academic support. The Blueprint tutoring program does this by drawing on the strengths of in-person and online tutoring and web-based math learning platforms, and by providing incentives to for student participation and family engagement. The goal of this study is to measure the effects of Blueprint's hybrid tutoring program on math knowledge, student-tutor relationships, and student sense of belonging and confidence in math for middle school students in two schools. Analyses highlight differences in outcomes across the two sites. A secondary descriptive analysis compares outcomes across students ending the year in small, medium, or large homebase tutoring groups. 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. [This report was prepared with Blueprint and RISC.]