The Offaly man finished with seven birdies and two bogeys.
Two double bogies in three holes left Rory McIlroy frustrated after his opening round at the Pebble Beach Pro-Am last night.
The defending champion ended the day on four-under-par overall, which leaves him six shots adrift of leader Ryo Hisatsune (pr: his-at-son-eh) of Japan.
Offaly's Shane Lowry is five under heading into day two.
UL And Mary I Meet In Fitzgibbon Cup Finale
Athlone Town Return To LOI Action This Evening
Offaly GAA Club Hosting Drive-In Bingo This Weekend
Cormac Izuchukwu Named In Irish Starting XV For Italy Clash
Lee Fitzpatrick Named In Ireland U20 Team For Italy Clash
NFL: Westmeath Face Away Trip To Down
Rás Tailteann Announces Stage One Start In Midlands Town
UL Crowned Sigerson Cup Champions
Athlone Town Women's Captain Thankful For Backing From Supporters
Laois Footballer Aiming To Win Sigerson Cup This Evening
Pebble Beach Pro-Am The Focus This Week For Shane Lowry
Portlaoise Panthers Suffer Agonising Defeat In Division One
Plans For 27-Acre Midlands Soccer Facility Rejected
CCFL: Senior Division One Title Race Heats Up Following Win For Coolraine
Midlands Athlete Wins Team Gold In England
Offaly Are A Brilliant Team - Iarlaith Daly
Laois Claim Impressive Victory Away To Limerick In Ladies Football League
Killester Prove Too Strong For Portlaoise Panthers
NHL: Meath Manager Positive Despite Defeat To Westmeath