We don't. Just like in PVP, I would like to see a button where it confermes that other players have confermed so I wont be
A) Standing there waiting for the match
B) Helping a friend while waiting and just about to get a drop from a boss to come in 3rd-4th in a Ranked Derby race
I noticed that practice has it...so why cant ranked? :?
When the players all have confirmed, the screen with all the participants in in the derby will come up. It will ask you to confirm, so click "go to arena" and then the derby will automatically start. hope this helps you! :)