Five players tied for the lead at 4-under 67, the largest logjam after 18 holes of the British Open since there was a six-way tie in 1938.

Jacob Skov Olesen is a surprise co-leader of the 153rd British Open at Royal Portrush Golf Club. The 26-year-old Dane bogeyed 18 but signed for 4-under 67, a score matched by China's Haotong Li,

The "Golden Bear" and 18-time major winner won the first of his three Opens and completed the first of his three career grand slams along the southeastern Scottish coast in 1966, then called the par-71 layout "the best golf course in Britain."

The British Open is underway at Royal Portrush in Northern Ireland. Two-time champion Padraig Harrington of Ireland had the honor of the opening tee shot. Xander Schauffele of the United States is trying to become the first player since Harrington in 2007-08 to win the Open in successive years.

The R&A posted its local rules and added a second document for "additional local rules" at the 2025 British Open, one of which pertains to Spidercam.

Matt Fitzpatrick was among five co-leaders through Thursday's first round of the 2025 British Open, while No. 1 Scottie Scheffler lurks at Royal Portrush.

Rory McIlroy shot 1-under 70 in the first round of the British Open at Royal Portrush that is also serving as a homecoming for the Northern Irish star.

On the eve of the British Open, the SI Golf team debates the TV experience, Open weather and if the rota needs to expand.