This event is hosted in Trackmania and in the title(s) Trackmania² Canyon. You can participate on your own and registration is not required. You need to have the title pack TMPLUS installed. And there is a map pool that you can contribute to.
Every month, on the 15th, a new map is released on the "Monthly 15" server (using the title pack "TMPLUS")
You have one month to achieve the best time.
The maps strive for an original and creative style.
All results on the World Trial Club website
And news on discord.
This event has no upcoming dates.