Ex-President Alejandro Toledo’s lead has narrowed...even as support for leftist Ollanta Humala (pictured) has soared.
Recent polls show that Humala's popularity rose two percent to 17%.
Three weeks ago he registered only 5%.
Humala is an outspoken ally of Venezuela's Hugo Chavez.
Support also grew for former Finance Minister and banker Pedro Pablo Kuczynski. He garnered 14% support... up from 9% a week ago.
Toledo now has 23% support... vs 26% a week ago.
The first vote is 10 April. On 5 June, there will be a second round... if no candidate wins more than 50%.