Lunger is dairyman of the Schutzhaus Latzfonser Kreuz, a mountain hut in the Sarntal Alps. 2004: Pierra Menta 2nd, together with Guido Giacomelli 2nd, together with Guido Giacomelli 2nd, together with Guido Giacomelli Trofeo Mezzalama 4th, together with Alexander Lugger and Olivier Nägele 3rd, together with Dennis Brunod and Manfred Reichegger.
2004: 8th (and 1st in "seniors II" class ranking), Patrouille des Glaciers (together with Oswald Santin and Manfred Dorfmann) 2005: 1st, Sellaronda Skimarathon (together with Alberto Gerardini) 2006: 1st, World Championship relay race (together with Manfred Reichegger, Dennis Brunod and Guido Giacomelli) 1st, Adamello Ski Raid (together with Guido Giacomelli and Mirco Mezzanotte) 2nd, "Fitschi Dachstein Xtreme" race 5th, World Championship team race (together with Guido Giacomelli) 2007: 1st and course record, Sellaronda Skimarathon (together with Guido Giacomelli) 2nd, Mountain Attack race 3rd, Traça Catalana race 2008: 1st and course record, Sellaronda Skimarathon (together with Guido Giacomelli) 2nd, World Championship team race (together with Guido Giacomelli) 2nd, Mountain Attack race 9th, World Cup race, Val d"Aran 2010: 1st, Sellaronda Skimarathon (together with Guido Giacomelli) 2006: 2nd, together with Guido Giacomelli 2007: 2nd, together with Guido Giacomelli 2008: 2nd, together with Guido Giacomelli 2005: 4th, together with Alexander Lugger and Olivier Nägele 2007: 3rd, together with Dennis Brunod and Manfred Reichegger.
He started ski mountaineering in 1985, competed first in 2003 and was member of the national team after 2006.