But he's just one part of a bigger story.
To analyze the players, the playing field, and the political stakes, RFE/RL and its Russian Service, Radio Svoboda, hosted a live discussion direct from Moscow with a diverse group of journalists, Russian activists, and election watchers.
WATCH: Election roundtable on Google+ Hangout
Participating in the discussion were:
Mikhail Sokolov -- Radio Svoboda senior correspondent and host of "Face to Events."
Robert Coalson -- RFE/RL senior correspondent with expertise in Russian politics.
Ilya Faibisovich -- a political activist, entrepreneur, journalist, and blogger (also at ruconomics.com with Mikhail Dubov) has written for "Bolshoi Gorod" and "Snob." Faibisovich is a 2008 graduate of the London School of Economics and lives in Moscow.
Olga Vlasova -- serving on the Federal Council of the Russian United Democratic Party Yabloko, which is represented in the mayoral race by Sergei Mitrokhin. A member of Yabloko since 2005, Vlasova was elected as the youngest-ever member of the party's governing body at its 15th congress in 2008.
Olga Feigina -- a member of the board of the Interregional Public Observers Movement Sonar, which carries out independent election observation by volunteers in many parts of Russia. A linguist by training who studied in the United States, Feigina served as a volunteer observer in Moscow for the March 2012 Russian presidential election.
Vladimir Ryzkov -- a historian, co-chair of the liberal democratic Republican Party of Russia -- People's Freedom Party (RPR-PARNAS), and former Russian State Duma deputy.