Chile is well known worldwide for its extensive use of market-driven mechanisms in education. Using a case study strategy in three schools, this paper shows that "universal" voucher system and mixed provision (co-existence of subsidised private and state-funded schools) policies are reshaping school management practices. The paper draws evidence from ethnographic data in disadvantaged Chilean public schools and uses Bourdieu's notion of field as an analytical tool in order to conceptualise the schools' practices within their local markets as a symbolic and strategic "game" of competition. One of the main findings is that, in response to market pressures and their specific positions within local markets, school leaders built a market-competitive agenda, preparing detailed strategies and undertaking decision-making practices accordingly. These practices were distinctive in relation to different school market positions, impacting the schools' priorities, value disputes, and management goals.