Guinea-Bissau presidential candidate Umaro Cissoko Embalo is on course to win Sunday's run-off election, his spokesman said on Monday, citing the campaign's tallies based on preliminary vote counts in each region. Official results are not expected until Jan. 1 and the electoral commission has not commented on the vote count. The camp of Embalo's opponent, Domingos Simoes Pereira, was not immediately available for comment.