Information systems (IS) enable virtual teams to deliver superior performance to organizations. Placing teams to compete with one another could further enhance their effectiveness. However, the IS literature on virtual teams has only focused on intra- team collaboration issues, leaving inter-team competition issues largely unaddressed. Hence, we examine how the six facets of conscientiousness are related to competitive virtual team (CVT) members’ engagement in the team’s functions and their intention to continuously use the CVT platform (ICUP). We use structural equation modelling to analyze the responses from 724 members in CVTs. We find that all the six conscientiousness facets are linked to the four CVT functions and to ICUP. This study is the first examining the impacts of conscientiousness facets on CVT functions and ICUP. Our findings provide insights on how to design platforms to continuously attract CVT members, enabling IS to lift organizational performance.