MORI poll shows narrow Pinera Chile presidency win
Pinera was seen defeating ex-President Eduardo Frei, who the poll gave 49.1 percent of the vote, wresting power from the centre-left coalition that has ruled Chile for two decades since the end of General Augusto Pinochet's 1973-1990 dictatorship.
MORI said the poll had a margin of error of 3 percent, and comprised interviews with 1,200 people across Chile between January 1 and January 9.
(Reporting by Rodrigo Martinez and Simon Gardner, editing by Vicki Allen)