A man walks past a campaign poster of the Ukrainian presidential candidate Andriy Sadovy reading the slogan "The only chance for changes right now", in Kiev, on February 4, 2019. - As the deadline for candidate nomination expired overnight between February 4 and February 5, surveys showed Volodymyr Zelensky ahead of former prime minister Yulia Tymoshenko and incumbent Petro Poroshenko. But with a record number of candidates in the race, the vote remains highly unpredictable. "Thirty people have been registered, this is an all-time high," commission spokesperson Kostyantyn Khivrenko told AFP, saying the documents of another 40 potential candidates are also being considered. (Photo by Genya SAVILOV / AFP)

People walk past a campaign poster of the Ukrainian presidential candidate Serhiy Taruta reading the slogan "Taruta runs for president, the country will start working again", in Kiev, on February 4, 2019. - As the deadline for candidate nomination expired overnight between February 4 and February 5, surveys showed Volodymyr Zelensky ahead of former prime minister Yulia Tymoshenko and incumbent Petro Poroshenko. But with a record number of candidates in the race, the vote remains highly unpredictable. "Thirty people have been registered, this is an all-time high," commission spokesperson Kostyantyn Khivrenko told AFP, saying the documents of another 40 potential candidates are also being considered. (Photo by Genya SAVILOV / AFP)

People walk past a campaign poster of the Ukrainian presidential candidate Anatoliy Grytsenko reading the slogan "Honest President will serves people" in Kiev, on February 4, 2019. - As the deadline for candidate nomination expired overnight between February 4 and February 5, surveys showed Volodymyr Zelensky ahead of former prime minister Yulia Tymoshenko and incumbent Petro Poroshenko. But with a record number of candidates in the race, the vote remains highly unpredictable. "Thirty people have been registered, this is an all-time high," commission spokesperson Kostyantyn Khivrenko told AFP, saying the documents of another 40 potential candidates are also being considered. (Photo by Genya SAVILOV / AFP)