This paper studies the effect of candidates' personal vote ranks on promotions to political power in an open list proportional representation system. Using a regression discontinuity design and data from Finnish local elections, we find that ranking first within a party enhances a politician's chances of getting promoted to the position of a municipal board chair, the most important task in Finnish local politics. Other ranks matter less. We document that the effect of ranking first is larger when there is less within-party competition, but the role of external competition is ambiguous. Our evidence suggests that the mechanism behind the rank effects is primarily unrelated to electoral incentives but rather to party-specific norms or political culture. Ranks seem to be, however, only a complement to other promotion criteria such as politicians' previous political experience or how close to the party lines their policy positions stand.