The 21-year-old backed up his first-round jump of 126.5m, which had given him the overall lead at the halfway stage, with a bettered effort of 128.5m, the furthest of the day, to give him an overall score of 274.2 points.
Freitag, a World Championship silver medallist this year already having finished second in the men's team large hill event in Val di Fiemme, was well clear of second-place Anders Bardal.
The Norwegian, who took gold in the men's individual normal hill event at the 2013 World Championships, recorded a score of 266.9 points to take second place and solidify his second spot in the overall standings.
And compatriot Anders Jacobsen, hot on his heels in third place overall, shared the final spot on the podium, taking third place on the day along with Severin Freund as both jumpers managed a combined score of 265.8 points.
- Sports & Recreation