The two players responsible for ball service are the pitcher/server and the catcher. As with baseball, the catcher is responsible for guarding the plate. This position has a much larger area of play...
I was just doing my P.E homework on it and the answer I found was 1st base, 2nd base, 3rd base, 4th base, bowler, backstop and battter. Batter can also be home and 4th base.Hope this helps!!! :) :D
There are 3 ways, 1) when you get half way round the playing field 2) through two consecutive no balls 3) through obstruction, where a fielder gets in the way of the batter.