Rokas began racing as a nine-year-old on the karting circuit and quickly gained a reputation for being one of the fastest young racers in the Baltic region. In his final year of karting, in 2017 at the age of 17, he finished seventh in the CIK-FIA Karting KZ2 European Championship and 14th in the CIK-FIA Karting KZ2 World Championship.

At the age of 18, Rokas started racing World Rallycross in the Super1600 category and won the European championship in his debut year.

In 2021 he tried his hand at rally-raid and achieved decent results in a number of races, including fourth at the Andalucía Rally and fifth at Rallye du Maroc. The following year he made his debut in the FIA World Rally-Raid Championship, finishing second in the Abu Dhabi Desert Challenge and Andalucía Rally and winning the Rallye du Maroc. The season culminated with Rokas being crowned the FIA T4 2022 World Champion. Rokas would also make his Dakar Rally debut in 2022, coming third in the SSV class and landing the Rookie of the Year title.

The Lithuanian would return to the Dakar in 2023 and won three stages before a mechanical problem ended his chances of victory. Even with this issue, Rokas would finish second overall in the T4 category with the Red Bull Can-Am Factory Team.

Rokas is pursuing his dream to be the World Champion in any motorsport category and he knows he can do it. People consider him as one of the most universal racing drivers. No matter what kind of racing, he can be very fast on gravel, circuit, and karting track or even off-road.