One of the most frustrating aspects of golf tournaments, for both players and spectators, is slow play. Despite years of backlash and debate, the issue remains unresolved, and it resurfaced again at this year's Open Championship,

How many golfers make the cut at The Open Championship? Here's what to know about the cut line rules for the British Open.

It is the first time in major championship history that five or more men, each playing under different flags, were tied for the lead.

Almost 280,000 golf spectators are attending the event at Royal Portrush throughout the week. After practice days from Sunday onwards, Thursday was the first day of tournament action and it lived up to expectations for many traders in the County Londonderry town.

The Open Championship had a little bit of everything Thursday, from sunshine to rain, a breeze to strong gusts. And no surprise, it had Scottie Scheffler right in the mix.

Even the No. 1 player in the world -- who opted for a fairway wood -- missed the fairway left Thursday. Scottie Scheffler was able to still make par, but plenty others were not; the hole saw over four times as many bogeys, or worse, as birdies.

It was a return six years in the making, and it was a return that perfectly encapsulated Rory McIlroy. Making the trek back to Royal Portrush for The Open Championship -- now as a career grand slam winner -- the Northern Irishman experienced a topsy-turvy day as the hard stuff came easy and the easy stuff came hard.

Tony Finau was sailing along just fine until he stumbled with a bogey on the par-4 17th in the first round of the British Open at Royal Portrush in Northern Ireland on Thursday. He is tied for 20th with a round of 1-under-par 70.