When Does Tiger Woods Tee Off on Friday? British Open Second Round TV Channel, Live Stream, Live Leaderboard

Ahead of the Open Championship, Northern Ireland's temperamental weather was singled out as one of the main threats to Tiger Woods' hopes of securing a fourth Claret Jug.

After undergoing four major back surgeries, the 43-year-old's body struggles when temperatures are in the low 60 degrees Fahrenheit or even lower.

As the Open returned to the Emerald Isle for the first time in 68 years, Portrush gave Woods a very Irish welcome, with cold weather, howling winds and squalls of rain a mainstay of the first day of play on Thursday.

The conditions took their toll and the 15-time major winner finished the first round for a 7-over-par 78, which left him 12 shots adrift of clubhouse leader JB Holmes.

"It's just the way it is," he said after leaving the course on Thursday evening. "And it's just the way it is going to be. I'm going to have days like this. I have to fight through. I fought through, but I just did not post a very good score."

Since winning the Masters in April to bring an 11-year wait for a major to an end, Woods has played only 10 competitive rounds of golf in a bid to preserve his body. All the same, he was hampered by unseasonably cold weather at the last two majors before the Open.

In May at the PGA Championship in New York, he said he felt sick by midweek and missed the cut. A month later at the U.S. Open, he finished tied for 21st but was visibly struggling at one stage.

With conditions unlikely to improve on Friday, the 15-time major winner faces another 18-hole long ordeal.

If the weather accounted for Woods, Rory McIlroy disintegrated under pressure. The pre-tournament favorite had dismantled the course record with a blistering 61 as a 16-year-old, but could only card an 8-over-par 79 on Thursday. The Northern Irishman's chances were dead and buried by the time he reached the second hole after making a quadruple-bogey eight at the first.

There were no such issues for world number one Brooks Koepka who is one of 12 players to have finished at 3-under, along with Irish Open winner Jon Rahm, Sergio Garcia and Tony Finau.

Here's everything you need to know ahead of Friday.

Tiger Woods, The Open
Tiger Woods of the United States reacts on the 18th hole during the first round of the 148th Open Championship held on the Dunluce Links at Royal Portrush Golf Club on July 18 in Portrush, United Kingdom. Mike Ehrmann/Getty

Selected tee times (All times ET)

  • 4:47 a.m.—Justin Rose, Tony Finau, Lucas Bjerregaard
  • 4:58 a.m.—Dustin Johnson, Jason Day, Keegan Bradley
  • 5:09 a.m.—Tiger Woods, Matt Wallace, Patrick Reed
  • 5:20 a.m.—Patrick Cantlay, Jon Rahm, Matt Kuchar
  • 6:36 a.m.—Charley Hoffman, Darren Clarke, James Sugrue (a)
  • 7:53 a.m.—Phil Mickelson, Shane Lowry, Branden Grace
  • 9:15 a.m.—Henrik Stenson, Xander Schauffele, Graeme McDowell
  • 9:59 a.m.—Bryson DeChambeau, Francesco Molinari, Adam Scott
  • 10:10 a.m.—Gary Woodland, Rory McIlroy, Paul Casey
  • 10:21 a.m.—Rickie Fowler, Kevin Kisner, Hideki Matsuyama

Live leaderboard

JB Holmes was the clubhouse leader after the first round, carding a 5-under par 66. The American was a shot ahead of Ireland's Shane Lowry and two ahead of world number one Brooks Koepka, who finished 3-under alongside Tony Finau, Webb Simpson, England's Lee Westwood and Tyrrell Hatton and Spain's Jon Rahm and Sergio Garcia.

A live leaderboard is available on The Open's official website.

TV and live stream schedule (All times ET)

The first two rounds of the final major of the season are available on Golf Channel, which will also broadcast the final two rounds along with NBC.

On Thursday, coverage of the first round begins at 1:30 a.m. ET on Golf Channel runs until 4 p.m. ET.

Streaming is available via Golf Channel, NBC Sport and The Open's official website. The entire tournament can also be streamed via fuboTV.