Factbox-Who are the candidates in Argentina's primary elections?

A combination picture shows Argentina's presidential pre-candidates Sergio Massa, Patricia Bullrich, Horacio Rodriguez Larreta, and candidate Javier Milei, in Buenos Aires, Argentina, July 2023. REUTERS/Agustin Marcarian and Matias Baglietto/File Photo

BUENOS AIRES (Reuters) - Argentines will vote on Sunday in primary elections that will determine the final candidates for a presidential ballot in October and give a clear gauge on the likely final result as the country battles against a swirling economic crisis.

The polls will open at 8 a.m. (1100 GMT) with results coming in from 9 p.m. (0000 GMT). All candidates need a minimum 1.5% of the vote to be eligible for the general election, while the two main political blocs face internal leadership battles.