Michael McGeady made it back-to-back Walled City Pro-Am victories with a stunning second-round seven-under 63 at City of Derry Golf Club to finish on 12-under for the tournament.
The local man held off a strong challenge from overnight leader Simon Thornton (Tulfarris GC) to win by five strokes and successfully defend the title he won in 2017.
Having carded a five-under-par first round of 65 at the Foyle Golf Centre, McGeady knew he would have to shoot low to oust Thornton, who had carded an excellent six-under 64 to sit atop the leaderboard.
And he did so, finishing without a dropped shot on his card, with his seven birdies putting him a comfortable five shots clear of Thornton, who was only able to card a one-under 69.
"In the back of my mind I was trying to beat the number I won the event with last year which was 12-under but it was a difficult day," McGeady said.
"When I stood up on the first tee I was just expecting it to be a real battle.
"I had discovered something the day before in my swing that was helping me move through the ball better.
"I have to say I hit the ball fantastically well for two days. I hit 34 of 36 greens in regulation which was pretty decent in those conditions.
"I was hitting the ball where I was aiming and it was plain sailing from there. Once I was doing that it took the pressure off the rest of my game."
Mark O'Mahony finished in solo third after a three-under 67 in his second round, while Banbridge's Richard Kilpatrick finished in a tie for seventh on level par.
Professional Brendan McCarroll - who competed at the recent NI Open - won the team prize with partners Jimmy Foley, Kevin Hennessy and Ronan Curran on a two-round score of 176.