Electoral system for the president

81: The President shall be elected directly by the people of the Republic of Belarus for a term of office of five years on the basis of universal, free, equal, direct suffrage by secret ballot.

82: The elections shall be deemed to have taken place if over half of the citizens of the Republic of Belarus on the electoral roll have taken part in the voting. The President shall be deemed elected if over half of the citizens of the Republic of Belarus who took part in the voting voted for him. If none of the candidates gets the required number of votes, a second round of voting between the two candidates who have obtained the largest number of votes shall be conducted within two weeks. The presidential candidate who obtains more than half of the votes of those who took part in the second voting shall be deemed elected. The procedure of holding presidential elections shall be determined by the law of the Republic of Belarus. 

14: Elections of the President of the Republic of Belarus shall be held within theunited constituency comprising the whole territory of the Republic of Belarus.

79: ... The President of the Republic of Belarus shall deem to be elected if more than a half of the citizens of the Republic of Belarus who have taken part in voting have voted for him...

80: If neither of the candidates for the office of the President of the Republic of Belarus has gained the required number of votes, the second round of voting on the two candidates who have gained the highest numbers of voters' votes shall be held no later than two weeks under the decision of the Central Commission... Herewith the candidate for the office of the President of the Republic of Belarus shall deem to be elected if he has gained more than a half of voters' votes who have taken part in voting.