Damien McGrane fired a five under par 66 to claim his 11th victory of the season at the Rossmore Centenary Pro-Am sponsored by Rally School Ireland on Saturday.
The Kells man produced a bogey free masterclass around the Co Monaghan venue to finish the day two shots ahead of Clontarf's Eamonn Brady.
The 45-year-old birdied the first and second and then rattled off seven pars to reach the turn in two under 34. On his way home he birdied the 12th, 14th and 15th as he cruised home in three under par 32.
Brady, the 2015 Order of Merit winner, has just the one win this season but showed some of last year's form in compiling a round that included four birdies, one bogey and 13 pars.
Andy Hogan (Edmondstown GC) finished third on two under par, one shot ahead of Brian Kerley (Ardee GC), Michael McDermott (Pure Golf Leopardstown), Neil O'Briain (Old Conna GC) and Glen Robinson.
Robinson and his amateur trio of Cian McGonnel, Tiarnan McGonnel and James Owens claimed the team prize with 94 points edging out Keith Shannon by a point.
Rossmore Centenary Pro-Am, sponsored by Rally School Ireland, Rossmore GC (Par 71)
66 D McGrane
68 E Brady(Clontarf GC)
69 A Hogan(Edmondstown GC)
70 B Kerley(Ardee GC), M McDermott(Pure Golf Leopardstown), Neil O'Briain(Old Conna GC), G Robinson
71 M Kelly(Dun Laoghaire GC), D Mooney(Nevada Bobs Belfast), M O'Sullivan(Piltown Driving Range), J Dillon(Headfort GC), S Thornton, R Kilpatrick(Banbridge GC).
Team Pro-Am: 1 G Robinson 94; 2 Keith Shannon 93; 3 Damien Mooney 92