Sort:  

1-0 is considered a narrow victory, right?

Is it common for draws to occur? Or must there always be a winner?

Yes it is a narrow one.

There is always a winner. If they are tied after 9 innings, they go extra innings. Each team gets an at bat.

I understand, so there are no draws. These extra times are like a match worth a place in the final where only one can qualify.

At least most baseball matches must be very exciting as there can only be one winner