Is simple training easier than normal manual training as i want the game to be a challenge and not for me to win every race...

hi craig basiclly simple training mode means that your head lad does all
the basic training for you (condition/fitness training) prepares horses to
race at optimum level this means when you goto race you horse will be in
tip top condition as long as you have not overaced them he does all that for you and
if you are new to the game it is best to start in this mode so
you can just manage your horses and not worry about setting lots
with simple traing unclicked you have to do all of the above yourself
and it can be quiet complicated and somtimes you wont do as good a job
as your head lad i use simple training and just concentrate on the racing
side hope that helps mate

cheers ill stick with simple training mode

How do you switch to simple training mode? I must be blind, because I can't find it anywhere...

You have to do it when you start a new game. It can't be switched once a game has started.