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.