This empirical paper studies the relationship between individual decisions regarding active and passive sport activities, using a survey conducted in the Spanish region of Navarra in 2007. Firstly, we estimate a bivariate Probit model and a multinomial Logit to analyze sports practice and sporting event attendance. Secondly, we apply a bivariate Tobit model to estimate the determinants of individual expenditures related to both activities. In both participation and expenditures, the results show a significant and positive correlation between active and passive sport activities after controlling for socio-demographic variables.