MOSCOW  Kyrgyzstan’s incumbent president appeared Friday to have won a landslide victory, gaining more than 80 percent of the vote in a contest that local and Western monitors said was marred by major violations of election laws.

Ballot stuffing, intimidation and media bias were just some of the infractions noted in Thursday’s election by observers from the monitoring arm of the Organization for Security and Cooperation in Europe, or O.S.C.E.

With about 86 percent of the ballots counted on Friday, the incumbent, Kurmanbek Bakiyev, had won about 85 percent of the vote, according to Kyrgyzstan’s election commission. The commission said official results would be announced Saturday.

But Radmila Sekerinska, the head of the observer mission for the Office for Democratic Institutions and Human Rights, the O.S.C.E.’s monitoring arm, declared Friday, “Sadly, this election did not show the progress we were hoping for, and it again fell short of key standards Kyrgyzstan has committed to as a participating state of the O.S.C.E.”