Five-eighth Tane Puki scored three of Zingari-Richmond's five tries when it beat Clutha Valley at Montecillo.
The former Southland representative and New Zealand Under-19 player had the ability to break the line.
The inside back combination of Josh Botting and Lachie Moore made a lively pairing for Clutha Valley and both scored tries.
Zingari-Richmond 33 (Tane Puki 3, Sam Renwick, Chris Bell tries; Renwick 4 conversions), Clutha Valley 12 (Lachie Moore, Josh Botting tries; Moore conversion).
Half-time: 19-0.
Referee: Barry O'Keefe.
