Opinion polling for the 2017 Chilean general election

Opinion polling was carried out prior to the 2017 Chilean general elections.

Open-ended question
Question: "Who would you like to be the next president?" Full sample is shown, unless specified.

a Likely voter (52%).

b Likely voter (49%).

First round
Question: "Given the following list of candidates, who would you vote for?"

a Ballot-box vote. b Estimated.

Second round
Question: "If the following two candidates proceed to a runoff election, who would you vote for?"

a Ballot-box vote.