Here's what to know about McIlroy's roots, from his hometown and upbringing, to his young golf career before he emerged as one of the best players in the world. McIlroy was born in Holywood, County Down, Northern Ireland in 1989. His father was also from Holywood, while his mother was from Lurgan, County Armagh.

By the time Rory McIlroy finished his first practice round for the British Open at Royal Portrush, a big crowd that weathered rain and sunshine was waiting to see him finish.

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.