After a one week delay because of a lawsuit, the District of Columbia Board of Elections and Ethics yesterday certified R. Calvin Lockridge as the winner of the ward eight seat on the Washington school board.

Lockridge's 71-vote victory in the Nov. 8 election had been challenged by Linda H. Moody, campaign treasurer for Wilbert Williams Lockridge's principal opponent. Moody charged Lockridge will improperly listing her as one of his supporters and asked $50,000 in damages for libel.

The elections board agreed last week to delay certifying the results of the ward eight (Anacostia) contest until after a hearing on the case. However, on Tuesday, D.C. Superior Court Judge Paul Webber rejected. Moody's request for a preliminary injunction to stop certification, clearing the way for yesterday's action. Webber ruled that under D.C. law, the proper time to file a lawsuit challenging the results of an election is within seven days after the results have been certified.

Moody said yesterday that she would not file a new lawsuit to try to stop Lockridge from taking office.

Lockridge had denied Moody's charges. He said in court papers that Moody signed his nominating petition and told one of his campaign workers just a month before the election that she supported him.