[6] In 2016, Hirt again competed in the Tour of Austria where he won the fourth stage to move into the lead of the GC.

He started the next stage with a 1:17 lead over second-placed Guillaume Martin, a gap which he held to the end of the competition three days later.

[12] In 2018, Hirt competed in two Grand Tours, the Vuelta a España and the Giro, where he finished 74th and 46th, respectively.

[6] After two seasons with Astana, Hirt joined CCC Team for one year before moving to Intermarché–Wanty–Gobert Matériaux in 2021.

[13] Three months later, in May, he won stage 16 of the Giro d'Italia, ultimately finishing 6th overall.