Constant pressure and determined tackling enabled Zingari-Richmond to beat Alhambra-Union at the North Ground.
Defence was the key and Zingari-Richmond rattled the more favoured Alhambra-Union team into a series of mistakes that proved costly.
The solid defence around the fringes by flanker Ryan Newman and lock Brady Carmichael stopped Alhambra-Union from getting any go-forward ball.
The normally fleet-footed Alhambra-Union backline was cut down in the midfield by the ferocious tackling of Ben Kent.
Zingari had a solid scrum with loosehead prop James Cooper getting the better of his opponents in his 50th premier game for the club.
The attacking skills of Jayden Hayward at second five-eighth gave Zingari the advantage on attack.
It was a break by Hayward that led to the first try when he sped through a gap and lock Elliot Mitchell was in support to score the try.
Zingari led 8-6 at the break but Alhambra-Union struck back early in the second spell when flying winger Karne Hesketh scored his fifth try of the season to give his side a 13-8 lead.
Zingari went back in front when Matt Gordon kicked his second and third penalty goals.
Peter Breen had the chance to win the game for Alhambra-Union on the call of full-time but his penalty goal from 22m and near the touchline was astray.
Zingari-Richmond 14 (Elliott Mitchell try; Matt Gordon 3 penalty goals), Alhambra-Union 13 (Karne Hesketh try; Peter Breen conversion, 2 penalty goals).
Half-time: Zingari 8-6.
Referee: Ross Barnett.