This research examines the association between student grit and academic achievement in introductory computer programming courses. While several studies have established a link between grit and student success in classes with lower failure rates, this exploratory work is the first to investigate the relationship in courses with high failure rates. Our survey data show that grittier students earn higher grades in introductory programming courses than less gritty students, thus providing support for extending the student grit-performance relationship to high failure courses.