The Peoples Democratic Party and its candidate in the election, Osagie Ize-Iyamu, had challenged Obaseki’s election, alleging widespread irregularities.
Obaseki, who ran on the platform of the All Progressives Congress, was declared the winner of the election by the Independent National Electoral Commission.
The head of the tribunal, Ahmed Badamosi, dismissed Ize-Iyamu’s petition.
It was learnt that wild celebrations broke out amongst supporters of Obaseki and the APC shortly after the pronouncement.