Of the 450 seats in the single-chamber parliament, 225 will be filled through voting by party lists — where the voter casts a ballot for a party, which presents a list of candidates.
The other half will be decided by voting for individual candidates on a first-past-the-post basis — a feature reintroduced by the Regions that is assumed to favor the party.
International monitors include a 700-member team from the Organization for Security and Co-operation in Europe (OSCE).
The OSCE will deliver its verdict tomorrow. A positive assessment could improve the international image of Yanukovych before Ukraine takes over the chair of the human rights and security body in January.