The Jaguares made a quick-fire start to the game with a try by Pablo Matera and a penalty goal by Domingo Miotti to lead 10-0 very early in the game. The Capetonians also suffered an early injury setback when Sergeal Petersen (wing) wa forced to leave the field with a leg injury, and was replaced by former Blitzbok star Seabelo Senatla.
The DHL Stormers steadily clawed their way back into the match, mainly through the kicking boot of flyhalf Jean-Luc du Plessis, who slotted three penalty goals to bring them within one point of their Buenos Aires hosts.
However, the Jaguares were able to stretch their lead to four points when Miotti slotted another penalty goal on the stroke of half-time to increase the score to 13-9.
The Jaguares pulled away in the second half thanks to a Ramiro Moyano try and they were also awarded a penalty try towards the end, which saw the visitors reduced to 14 men for the remainder of the match as a result of the yellow card shown to midfielder JJ Engelbrecht.
Damian Willemse later took over the kicking duties from Du Plessis - who succeeded with four penalty goals - and the young Springbok back added two more penalty goals to bring the Cape side to within striking distance of the Jaguares.
Senatla scored with five minutes left on the clock to reduce the score to 30-25 and although the visitors finished strongly with a barrage of attacks, they were unable to break through the Jaguares' defence, who held firm for their fourth successive win.
Jaguares 30 (13) - Tries: Pablo Matera, Ramiro Moyano, Penalty Try. Conversions: Domingo Miotti (2). Penalty goals: Miotti (3).
DHL Stormers 25 (9) - Try: Seabelo Senatla. Conversion: Damian Willemse. Penalty goals: Jean-Luc du Plessis (4), Willemse (2).