INEC, President Tinubu, and the APC opposed the appearance of subpoenaed witnesses from Atiku Abubakar and the PDP.
The respondents objected to the witness testimony, citing insufficient time to review the statements.
The court adjourned proceedings until Thursday to allow the respondents to study the statements for cross-examination.
The petitioners also presented their 11th witness, who highlighted issues with result uploads.
The case challenges the validity of the February 25 presidential election.
