How Do I see the list of completed tasks.

I came across it by accident recently, maybe last week. I could see which tasks I completed for the regatta and number of points earned for each task. Wondering how do I see that, and as a co-leader, can I see what tasks each team member has completed? It looks to me ( not really sure) that some members choose a task with a long duration, just to get in the regatta, but complete it and then not pick up any other tasks. Also wondering if a team member chooses a task and doesn’t complete it (in this instance the chose 1 task for the entire regatta) do they still count as an active participant. Or does a player need to fully complete a task to show as active? I tried searching the wiki and Reddit and can’t find these answers. Thanks in advance for your help.