David McCormick Concedes to Dr. Oz in the G.O.P. Primary for Senate in Pennsylvania

David McCormick, a former hedge fund executive, conceded the exceedingly close race for the Republican nomination for Senate in Pennsylvania on Friday to Dr. Mehmet Oz, the celebrity television physician, with a statewide recount underway and no official race call.

Dr. Oz had a lead of fewer than 1,000 votes, or .07 percent, before the county-by-county recount began last week. The unexpected early concession — five days before the recount’s full results were to be released — was a recognition that Mr. McCormick had gained only handfuls of votes so far and faced an insurmountable hurdle in making up his deficit.

His decision sets up one of the most pivotal contests of the midterms, a November election between Dr. Oz and the Democratic nominee, Lt. Gov. John Fetterman.

“We spent the last 17 days making sure every Republican vote was counted,” Mr. McCormick said in an appearance in Harrisburg with supporters on Friday evening. “But it’s now clear to me that with the recount largely complete, that we have a nominee. And today I called Mehmet Oz to congratulate him on his victory.”