43-year old Paul Casey has the clubhouse lead at the Masters after shooting an opening round 7-under-65.
But a number of players still have to finish their first round after rain stopped play.
Listowel's Corey Conners finished his day at 2-over-par after carding six bogeys. He did sink an eagle on the 15th hole, a par-5.
Fellow Canadian Adam Hadwin also finished at 2-over. Mike Weir was 1-under. Nick Talyor has yet to finish his first round.
Defending champion Tiger Woods finished his day with a bogey free 4-under.
