Former champion Brian Harman climbed to the top of the second-round leaderboard at the British Open as home favourite Rory McIlroy's rollercoaster ride continued at Royal Portrush on Friday.

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.

So here is our final major big board of the year, ranking the top 30 golfers in the field. This is not simply the 30 best golfers in a vacuum. These are the 30 golfers that our crack team of Gabby Herzig, Hugh Kellenberger and Brody Miller believe are best suited to win this week at Royal Portrush.

World number one Scottie Scheffler was one stroke adrift, and Rory McIlroy scrambled to a 70 after a rollercoaster round in which he bogeyed the first hole and fought back to three under before fading on the back nine.

ROYAL PORTRUSH — The Masters took four days to drain the Rory McIlroy fan base of emotional resource. Northern Ireland might well run out of tranquilisers come Sunday should McIlroy get that far. No eight on the card, yet, but tumult aplenty on the opening day in Portrush.

McIlroy ejected on the first hole and ultimately missed the cut when The Open was last played in his home country of Northern Ireland

The last time the British Open came to Royal Portrush in Northern Ireland, Rory McIlroy missed the cut. Will he claim his second major of the year this time around?