If you are v2, there are some details that can be found directly on the tourney pages.
https://www.chess.com/tournaments/help -- not sure that is implemented in v3 yet.
Also, in either version some of these may help (though some are for live):
https://support.chess.com/customer/portal/articles/search?q=tournament
Is there a guide on this site outlining, guiding, how to create and run a turned based tournament on chess.com.
Thanks,
G.