Paul Dunne shot an opening round 67 at the DP World Tour Championship to trail leader Patrick Reed by two holes, with Shane Lowry two shots further back behind his compatriot in Dubai.
The American remains the man to catch and holds a single shot lead over Justin Rose and Scott Hend after a blistering 65 that included seven birdies.
The Irish pair will reflect on a fine start in the UAE, with the Greystones man three-under-par at the turn before adding two more birdies in an error-free round.
Lowry is in close company on the leaderboard. A steady front nine saw the Offaly man one-under at the turn, but found trouble on the par-four 12th hole that resulted in a bogey.
The 30-year-old recovered with two more birdies, including at the final hole to join a cluster of players on five-under.