This survey just came from IOP/PUCP, a pretty trustworthy source and notably the poll isn't attached to any Peru newspaper or media source. Here's the headline chart:
We got Keiko leading Ollanta again but this poll is WAY closer than recent ones from other companies...a real live too-close-to-call, with nine days to go. Sunday will see the final big crop of polls before the one week pre-election period when no polls can be published there. Then the vote, Sunday June 5th. Then they can all STFU...please.