After the jump on distance of 125.5 m in the first series held the second position. In the other hand, he jumped 135 m, which was the longest distance in the competition. Second series gave Stoch fourth career victory, the second in Zakopane. In the first competition in Predazzo, after the landings at 123.5 mi 126 m, peaked at 7th place, with a loss of 4.2 points to the podium. In both series jumped in adverse wind conditions. The next day of the competition on Trampolino dal Ben jumped a distance of 125,5 mi 131.5 m, which gave him the victory before Gregor Schlierenzauer and Anders Bardal. This allowed him to also stay ahead in the overall standings Thomas Morgenstern and move up to fourth place. Season 2011/2012 graduated on the best in his career – fifth place in the overall World Cup with the acquis 1078 points, and a loss of 247 points to the winner of the Crystal Ball – Anders Bardal. In this season Stoch was on the podium seven times – twice victorious, was second twice and third three times. In the classification of flights was sixth, which was also his best result. He lost 162 points to best aviator season – Robert Kranjec, he stood on the podium one contest flight – was third in Tauplitz. On 25 January 2013 he became the joint holder of the Polish ski flying distance record (tying the mark held by Piotr Żyła) with a jump of 232.5 metres. In the first competition in Val di Fiemme during 2013 Ski Jumping World Championships Stoch earned the highest score in the trial before the contest, jumping to 103 m in the first round competition jumped a distance of 102 m and was ranked in second place, losing 2.8 points to the leader – Anders Bardal. In the second series has reached 97 m, with a weak landing and fell to eighth place. Stoch in post-competition interviews stated that he is very unhappy with the obtained result – despite the relaxation made a mistake during the jump. On 28 February 2013 achieved title of World Champion 2013. In the first series of the competition he showed the longest jump on 131.5 m and earned high marks for style, including the "20" from the Swiss judge. He was the leader after the first round. In the final series, like most of the top competitors he competed with reduced at the request of the coach – the nineteenth beam.