Scott (46), a Cromwell fencing and pavement contractor, beat Peter Sain (Carlton Cornwall) 21-13 in the national open bowls championship final at the Taieri green.
Scott joined cousins Terry (1990) and Jim (1982) and aunt Noeleen (1977) who had all won national singles titles before him.
''I've been looking forward to something like this for a long time,'' Scott said.
''I just wanted to keep the family name going. I've been close in the past but to take it today was amazing.''
It was particularly pleasing to his uncle Bill, now in his late 80s, who won the New Zealand pairs title in 1964.
He listened to the last few ends by phone from his home at Cromwell and spoke to his nephew immediately after the game.
Scott was runner-up in the New Zealand championship singles at Dunedin in 2007 and reached the semifinals in the event in Christchurch a year later.
The Scott clan was out in force at the Taieri green yesterday and nine family members were willing him on from the side of the green.
This included his wife, Penny, who was given a day off work from the Cromwell New World to come to Dunedin for the final.
Scott was managed during the singles by Dunedin judge Stephen O'Driscoll who is married to his cousin, Lynley, who sent texts of the game's progress to her son, Scott, who is working at Hamilton Island in Queensland.
Scott learned valuable lessons from his loss to Tony Grantham (Birkenhead) in the 2007 final in Dunedin.
He put his game together better than four years ago and showed a greater degree of maturity in the way he played his bowls.
He applied the mental skills he learnt as an elite sportsman at the New Zealand Academy of Sport (South Island) last year.
''I was calm today,'' Scott said. ''I looked at it as just another game of bowls. I learned from four years ago.''
It was not an easy final for Scott, because he was matched against Sain who has won four New Zealand titles and was looking to win his fifth title and New Zealand gold star.
Sain won the singles in 1991 and 2000.
Sain had reached the final by outdrawing his opponents but he was not able to do this against Scott because of his controlled upshots and drives.
He needed to do this to upset Sain's rhythm because the Aucklander had shot to an early 6-0 lead by scoring threes on the first two ends.
''I was playing very well at this stage,'' Sain said.
''I was holding three shots on the next end when Shaun played a flukey shot that ended in his favour. He did it again on the next end.''
Scott added singles on the next two ends and the scores were 6-6 after six ends.
''He got his courage up after this and played some marvellous bowls,'' Sain said.
''There was nothing much I could do about it.''
Scott admitted playing erratically at the start.
''But I knew I'd come right. I tried to make my first bowl count and it started to happen. The green was changing slightly in the breeze and I was thinking of drawing the line all the time.''
Scott took control of the game when he scored 10 shots from the ninth to the 12th ends to lead 16-8, This included three threes.
''Once I got the first three I knew I was playing well,'' Scott said. ''But I knew I couldn't let up and I went for it.''
The 10th end saw Scott at his best when he trailed the jack to the ditch with his third bowl and then drew the bonus shot for three.
Sain came back by scoring twos on the next two ends to reduce the gap to four points, 16-12.
Scott was mixing up his game by adding accurate upshots to his draw bowls that rested near the jack from the ninth end on.
Scott won the game on the 18th end when he nudged in off front bowls to take shot and the New Zealand title.
