PORTRUSH, Northern Ireland, July 18 (Reuters) - China's Li Haotong and American Brian Harman led the British Open second round on eight under par as home favourite Rory McIlroy's rollercoaster ride continued at Royal Portrush on Friday.

At this time six years ago, Rory McIlroy was already on his way home, heartbroken about missing the cut in his first “home” British Open.

Rory McIlroy made partial amends with a 1-under 70 in his first round that at least hasn’t played him out of the tournament.

McIlroy didn't play his best Thursday at Royal Portrush but shot 1-under 70 and is three shots off the 18-hole lead.

Rory McIlroy's choke at the 2019 Open was inexplicable. Unless you ask one of the expert psychologists who studied it.

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.

Rory McIlroy shot 1 under Thursday at Royal Portrush, a better start than the first time he played the British Open at the Northern Ireland course near home.

Disaster on the first when the championship returned to the county Antrim golf course six years ago has made the field very wary as they begin their rounds