The Jaguares have run riot against the Kings in Buenos Aires, beating the South African Super Rugby side 73-27.
The Argentina-based Jaguares, who had lost their past six games, put in an imperious display in the 11-tries-to-four win.
Back-rower Leonardo Senatore scored a hat-trick while five-eighth Nicolas Sanchez added 23 points with a combination of a try and his accurate kicking.