He represented his country also at the 2016 Summer Olympics and won two gold medals, in K-2 1000 metres and K-4 1000 m events. In the K-2 1000 metres he competed with Max Rendschmidt, while the K-4 team consisted of Gross, Rendschmidt, Tom Liebscher and Max Hoff. That year Gross and Hoff also won the European K2 1000 m event. In 2017, they retained the European title.