How to Complete Motorboat Time Trial?

Just wait for the race to start and start moving through the checkpoints once it does. Once you come back around to the finish line, you'll complete the challenge. Normally, I'd recommend doing challenges like this a little bit after they drop, because the area will be less busy.

How do you do a motorboat time trial?

To start the boat time trial, all you need to do is drive your motorboat through the starting icon and then follow the timed indicators strewn throughout the course. If you miss one, you can turn around and go back and do it again.

What is the boat time trial at motorboat mayhem?

Motorboat Mayhem is a boating track where players will need to race their vessels to the finish line. The challenge does not ask players to complete the trial in record time, but there is a timer. Players will need to hit every checkpoint on the race track before that timer runs out to earn their XP.