It also frustrates me to lose when I have spent many hours developing my character and he is in top shape with the maximum skills, but then I think, how boring would it be to have only equal matches with the possibility of defeat only with sims of my level, and on the other hand, thinking how limited the game is, to be well the tournament should work by categories, that when you have more level you will always face rivals like you, but how many sims would you need as rivals to not stay fighting again and again against the same ones? In the end, you have to lose against rookies, but I really liked it.
I like a certain uncertainty in games, it's like jobs, it bores me a little to have a promotion guaranteed if I complete the performance bar, which also is relatively easy, I enjoy it more with Job Overhaul and never knowing if my sim is going to promote or not, or if I'm going to have more income or I'll stay poor longer. That's the funny thing about a game.
In general I see this Sims 3 quite "flat", without many surprises. I remember that save where I was always defeat by a very nice Chinese woman who had if I remember correctly level 5, and I was thinking, how do I win her? And I watched with MC the strength of my Sim and his weight and put him to train to improve it before facing her, in the end I was the best friend of her xD