Haha, alsjeblieft!
Don't get your question completely. If you choose to declare manual the winner, you choose the yourself the winner and the champion will be send out send to remaining audience on the date and timing you choose at that moment.
Once Marketo automatically declares the winner (option; declare winner automatically) the champion email will be send to remaining audience on the date and timing you sheduled when you set the a/b test.
https://community.marketo.com/MarketoArticle?id=kA050000000LCMXCA4
Does this answer your question?