North West's Ryan O'Neill admitted he is still on cloud nine after celebrating a double success in the IIBA National Championships at Richhill Recreation Centre.
The United Services man picked up the singles and fours titles, which earned him a full set of national silverware.
"I'm still trying to take it all in," he said. "I had previously won the pairs, triples and fours championships, so I'm thrilled to have at last got my hands on the singles trophy.
"It also puts me in with an elite band of bowlers that have managed to win all four national titles. I'm over the moon."
O'Neill defeated Salisbury's Terry Crawford in the singles decider. He roared into a 5-1 lead and there was no looking back as he emerged a 12-5 winner.
Meanwhile, Armagh's Pauline Beattie wrote herself into the record books by winning the ladies' singles for the sixth time.
IIBA National Championships: Singles: R O'Neill (United Services) 12 T Crawford (Salisbury) 5.
Pairs: D Jordan, M Wilson (Cookstown High School) 12 M McAleese, D Walker (St Coleman's, Dervock) 6.
Triples: A Reilly, Nathan Haire, Nicky Haire (Hillsborough Social Club) 9 P Whittle, T Mulholland, M Sproule (Cranagill) 8.
Fours: N Logue, J Devine, L Harrison, R O'Neill (United Services) 10 R Fiddis, B Johnston, D Coulter, S McKinley (Ulster Transport) 7.
Ladies' singles: P Beattie (St Mark's, Portadown) 10 B Davidson (Cookstown Parochial) 9.
Ladies' pairs: J Wilson, M Wilson (Michelin) 8 E Hastings, G Blair (Ballywalter) 11.
Ladies' triples: M Campbell, C Murray, B O'Neill (St Coleman's) 16 E Haire, M McClure, J L Hamilton (Glendermott Presbyterian) 11.
Junior singles: S Hand (Corduff) 17 D Davidson (Cookstown Parochial) 8.
Junior pairs: C Hastings, M Hastings (Ballywalter) 3 B Whittle (Cranagill), S Breen (St Anthony's) 16.
Over-55 pairs: S Bell, G Bell (St Johnston Presbyterian) 11 B Taffe, S Conroy (Redeemer) 17.