Typically the candidate who comes first in the first round of elections is also the favorite in the second round, however in 13 municipalities in Attica the outsiders managed to reverse the outcome.

The new mayors of Agia Paraskevi Yannis Stathopoulos, Acharnes Yannis Kassavos, Vrilissia Xenos Maniatogiannis, Vyrona Grigoris Katopodis, Galatsi Giorgos Markopoulos, Dionysos Dionysis Zamanis, Keratsini-Drapetsona Christos Vrettakos, Kifisia Giorgos Thomakos, Megara Grigoris Stamoulis, Perama Yannis Lagoudakis, Petroupoli Evangelos Simos, Fyli Christos Pappous and Chalandri Simos Russos managed to cover the difference from the first round.