[3] In 2015, in Planica, Prevc became one of the few ski jumpers in history to achieve a "perfect jump", with all five judges awarding him the maximum style points of 20.

[4] In the following year, Prevc achieved the most individual World Cup competition wins in a single season – 15 – which is also a record.

[6][7] Both his brothers, Domen and Cene, and one of his sisters, Nika, are also FIS Ski Jumping World Cup jumpers.

[10] At the age of nine, Prevc started training in ski jumping at the Bregarca K25 hill, located in Dolenja Vas.

In January 2010, at the Junior World Championships, Prevc won silver at the individual and bronze at the team event.

Together with Robert Kranjec, Primož Pikl, and Mitja Mežnar, Prevc finished 8th in the team large hill event.

Together with Kranjec, Jernej Damjan, and Jurij Tepeš, he won a bronze medal at the team large hill.

Prevc jumped 225.5 meters (which would equal the hill record) in the one-series event but fell hard after the landing and injured his shoulder.

[15] He needed surgery which meant he had to finish the season early and also missed out the Ski Flying World Championships in Vikersund.

He went on to win in Sapporo, which brought him to the top of the World Cup overall standings for the first time in his career,[18] where he remained for the next couple of events.

[3] On 20 March in Planica, Prevc achieved a "perfect jump" with all style referees awarding him maximum 20 points.

At the same event, he also set a new hill record with 248.5 m.[19] Prevc spent a couple of weeks at the top of the standings during the season.

[12] In the 2015–16 season, Prevc won 15 out of 29 World Cup events, the Four Hills Tournament, and the overall and ski flying titles.

[23] On 14 February in Vikersund, Prevc won the event despite sliding upon landing (he remained on his feet nevertheless), which rarely happens in ski jumping.

[33] The team event in Willingen saw, for the first time, all three Prevc brothers representing Slovenia; together with Tepeš, they finished fourth.