PORTRUSH, Northern Ireland — Rory McIlroy was younger and less seasoned mentally than he is now. He had no idea what to expect when he stepped to the first tee in the opening round of the 2019 British Open at Royal Portrush, a golf course in Northern Ireland located 60 miles from his boyhood home on which he set the course record as a 16-year-old.

Rory McIlroy is back at Royal Portrush and feeling plenty of love as the Masters champion. It's far different from when the British Open was last held in Northern Ireland.

As a 16-year-old at the 2005 North of Ireland Amateur Championship at Royal Portrush, Rory McIlroy shot a course record 61. That was the old course, before redesign. It's a course he recognizes only parts of now.