MXGP 2020 - The Official Motocross Videogame

The achievement just says "complete" rather than win but i tried this a few times without winning and no pop

I tried leaving the controller idle an just finishing the 2 laps once the 30 mins had timed out and by doing a few laps and then idling etc on both a real track and a created track and no pop

Finally decided to do the full race and win (on a created track) and the achievement popped when my player was holding the race trophy

So perhaps simply completing the race isn't enough and winning is needed too despite the achievement description