Rory McIlroy and Graeme McDowell are currently best of the Irish on Day 1 of the Masters.
Both players are on 1-under par, while Padraig Harrington was on a level par round.
McDowell and Harrington are still out on course.
Shane Lowry followed a bogey at 10, with a double-bogey at the 11th to drop back to 3-over par.
Darren Clarke ended the day on 2-over following a round of 74.
Charley Hoffman and Justin Rose are clubhouse leaders on 5-under, after opening rounds of 67 today.
Charley Hoffman takes the early first round lead with a 5-under-par 67. #themasters pic.twitter.com/ds5tNsfLvk
— Masters Tournament (@TheMasters) April 9, 2015
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