Dennis sparked his interest in motorsports at the age of 2 when his parents bought him his first ATV. At the age of 4 he started with motocross, and at the age of 5, Gokart.

​

Dennis won his first race at the age of 8 and in the period between 2011-2013, he was on the podium in 62 out of 70 races nationally.

 

During his second season in WSK Italy in 2015, he was on the podium in 13 out of 14 races (7 victories). In 2016 he became the youngest ever DKM OKJ German Champion, and in 2017 he became the youngest ever DKM OK Champion.

​

Dennis is the 2019 Italian Formula 4 Champion and German F4 Vice-Champion, winning18 races and taking 26 podiums in the two series combined.

 

In 2021 Dennis became FIA Formula 3 Champion, picking up 9 podiums and 16 point scoring finishes in 20 races.

​

Dennis will in 2022 be driving for Prema Powerteam in FIA Formula 2.

​