The election tribunal had dismissed their petitions and upheld the victory of President Tinubu in the February polling.
The Independent National Electoral Commission (INEC) introduced biometric technology and a central database for uploading results in real-time to ensure transparency.
INEC acknowledged “glitches” but dismissed allegations that the vote was not free and fair. Critics said the technical problems and delays had allowed opportunities for vote manipulation.
The ruling followed a pattern seen in previous election years in Africa’s most populous country, where no legal challenge to the outcome of a presidential election has succeeded since Nigeria returned to democracy in 1999.