Binay and Mercado had confirmed their parting in December 2009 when the latter moved to the Nacionalista Party.

Former Senator and 2nd district representative Agapito Aquino ran as an independent candidate.

He and mayoralty candidates Binay and Mercado used to be political allies with the outgoing mayor.

Erwin Genuino also ran for mayor as a candidate of Bigkis Pinoy Movement.

The incumbent first district representative Teodoro Locsin, Jr. was on his third consecutive term and was ineligible to seek reelection.

They faced former councilors Oscar Ibay and Robert Dean Barbers, and Oswaldo Carbonell.

Commissioned by Victor Limlingan, Jr., Social Weather Stations conducted one survey in the city from April 7 to 9, 2010, with a sample size of 600, divided equally on Makati's two districts (300 each), with a sampling error of ±4% for the entire city and ±6% for both districts.