Recent work on social movement fields has expanded our view of the dynamics of social movements; it should also expand our thinking about social movement success. Such a broader view reveals a paradox: social movements often snatch defeat from the jaws of victory by narrowly targeting authorities with their actions instead of targeting the broader social movement field. Negative impacts from the wider social movement field can then reverse or overshadow initial victories. We distinguish between a social movement’s victory over (...) the immediate target, and more lasting success that arises from shifting alignments in the broader social movement field. To test the predictive value of the distinction, we compare two very similar student-led social movements, both of which targeted university policies regarding sensitivity to race issues and changes in university personnel. One built a broad coalition of support that extended across its social movement field and was thereby able to institute durable change. The other did not, and despite its clear initial success, this protest movement produced consequences mainly adverse to its preferred outcomes. We demonstrate how pervasive this paradox is with examples from other U.S. protest outcomes and studies of revolutions. The paradox is resolved by focusing on changes in the entire social movement field. We thus argue that achieving, and understanding, lasting social movement success requires attention to the entire social movement field. (shrink)