This article ; Building Grit: The Longitudinal Pathways between Mindset, Commitment, Grit, and Academic Outcomes set out to investigate the connection between grit and achievement outcomes (academic and engagement). Additionally, an objective for this study was to examine the impact of growth mindset & goal commitment (if any) on grit. This study included 6^th-9^th grade Finnish students that participated in a Mind-the-Gap longitudinal study (2013-2016). Students’ grit was measured (grit scale; Duckworth,& Quinn 2009), growth mindset (agreement using scale on 8 items), education-related goal commitment, academic engagement, academic achievement, and covariates (gender, SES, conscientiousness, academic persistence). Results indicated that 8^th grade perseverance was related to school achievement and engagement in the 9^th grade. Additionally, a strong indicator for grit in the 6^th grade was goal commitment as opposed to growth mindset. Overall, these findings show that grit is highly associated with increased engagement and academic achievement. If grit is the focus for improvement, it is suggested that practitioners may be inclined to encourage goal commitment versus growth mindset.