MXGP 2021 - The Official Motocross Videogame (EP)
51 Achievements
72-88h
PS4
Like a dragon
Cover 30 km - 18.64 mi in Free Roaming in the Playground.
12.5%
How to unlock the Like a dragon achievement in MXGP 2021 - The Official Motocross Videogame - Definitive Guide
This includes races in the open world. I've also found that you can get a decent amount of mileage out of just holding the right trigger down as you often end up turning around naturally when crashing out