Organization and Impacts of the CF-OBI: Results of the Three Editions

This paper presents the organizational methodology and longitudinal results of the Girls' Competition of the Brazilian Olympiad in Informatics (CF-OBI) across its first three editions (2023, 2024, and 2025). The results demonstrate a significant increase in female participation across all levels, particularly in the Junior, Level 1, and Level 2 categories of the Programming track. Notably, both the number of registered students and active participants grew substantially during this period, with the Junior level showing the most pronounced expansion. Data analysis reveals distinct patterns in geographic concentration, institutional engagement, and territorial reach, which are directly relevant to discussions on scalability and inclusiveness in technology-mediated educational initiatives. The findings suggest that the CF-OBI provides a supportive and strategically pivotal learning environment, suggesting its potential as an entry point for encouraging female inclusion in computing.