Mastering sports / Music

Hello guys,
I am very busy lately with the Grand slam but today i had some time to write and did some trading on horse racing markets.

Today i would like to talk about a common mistake that i see a lot of times. What is it?
Trading a lot of sports, instead of mastering just one sport first.
I am not saying that trading a lot of sports is bad, what i am trying to say is that if you are starting to trade on sports markets its better to focus in one sport only and master it and then move on to the next one. One great analogy for this is if you are doing a lot of things at home, instead of doing one at a time. Your results will be better if you just focus in one activity.

----------

good trades 
r9
ps: Good weekend