At just 17, Wellinger is competing on the World Cup circuit for the first time ever this season and finished 17th and fifth at the opening two events in Lillehammer last weekend.
And, despite his age, there can be no denying Wellinger's talent as he was the best performer in Finland which in turn gave Germany victory in the first of six team events this season.
He recorded a score of 146.4 with the Germans very first jump of the competition and then backed it up by producing 148.6 in the second round for an overall personal total of 295.
Wellinger's first leap was enough to keep Germany in the lead for the first three jumps of round one before Slovenia's Peter Prevc recorded 150 to give Slovenia the lead at the halfway stage.
However Germany fought back in the second round thanks to Wellinger and, despite the efforts of Austria, it was enough for them to retake the lead which this time they maintained throughout.
Michael Neumayer and Richard Freitag kept their cool in the second and third jumps as did Severin Freund on the final leap of the competition as Germany finished with an overall score of 1104.1.
Austria were resurgent but the fightback from Gregor Schlierenzauer and Thomas Morgenstern in the last two jumps in particular was in vain as they finished with 1098.8.
Meanwhile Slovenia were to finish third with 1064.4 with Jaka Hvala and Prevc producing the second and third best personal scores to beat off competition from Norway who were fourth.