Canadians owned the podium, however, in a tale of two races as the first run was affected by local snow squalls before clearing skies greeted the racers for the second of two runs.
Robbie Dixon, the favourite entering the race, showed great form in winning the Cup with a combined time of 1:40.83. Teammate Tyler Nella took second in 1:41.25 and fellow Canadian Ryan Semple was third in 1:41.42.
Griffin's time of 1:41.69 was good enough for a tie for fourth with Canadian Manuel Osborne-Paradis.
"Wednesday was a great confidence builder for Ben and a solid result," said Snow Sports New Zealand Alpine Manager James Lazor.
Queenstown's Tim Cafe was the next best Kiwi, finishing eighth in 1:42.50. Adam Barwood, fresh off a successful start to the season in the Wanaka Tech Series, finished 17th, followed by Willis Feasey (18th), Wilbur Coote (25th), Fraser McGlinn (27th) and Nick Pascoe (28th).
"The race department at Coronet Peak did an amazing job preparing the course for the races today," added Lazor, "especially considering the recent weather and the fact that it snowed during the first run."
The Southern Lakes Cup was calendared by the Canadians as their first race of the Southern Hemisphere season after two weeks of training in New Zealand leading up to the race.
Six countries participated in the Southern Lakes Cup, with a full field of international teams expected for the next scheduled FIS race, the Japanese FIS races, scheduled for 21 August, also at Coronet Peak.