Lloyd Saltman kept it in the family as he succeeded his elder brother, Eliott, as the Edinburgh & East Alliance champion.
The former Walker Cup player opened with a solid 65 (34-31) on Gullane No 3 before adding a superb 64 (32-32) on the neighbouring No 2 layout at the East Lothian venue.
The combined effort saw the Archerfield Links player finish three shots ahead of his younger brother, Zack (66-66), as he claimed the Uniroyal Quaich for a third time overall.
Saltman’s first success in the event came in 2006, the year after he finished as leading amateur in The Open at St Andrews, before reclaiming the title in 2014.
Bathgate’s Louis Gaughan (69-64) and Gullane’s Marc Owenson (66-67) shared third spot in an event featuring the top 60 players on the winter circuit’s scratch Order of Merit this season.
The amateur prize, the Gavin Clark Trophy, was won by Kingsknowe’s Donny Munro, 12 months after he shared it with two other players.
The three-handicapper carded a net aggregate of 132 (67-65) to finish three shots clear of Archerfield Links seven-handicapper Mark Sokolowski (71-64).