Single Sport OR Multi Sport??!!
Who has some thoughts on the concept of if a person wants to bet on sports (to make a profit by the end of the season), whether they should just stick with that one sport and profit from that or work with a few different sports? (When anyone answers this, could you please tell me why you think what you do?

If you can make a consistent profit from 1 sport than why wander. Works for me.

Work at one sport, and if you can beat it then think about picking up another sport.

It's pretty hard to hold a decent advantage with a good volume of bets for more than a couple of sports.

ALL depends on how many sports you know well, if its 1, 2, 3, or 4 sports concentrate on your strengths.

It also depends how youa attack the sports. Knowing the sports well doesn't matter if you are analyzing statistics to create a computer model.

However if you are betting based on your own (and hopefully informed) opinions, then more than a few sports can be inefficient.

Concerntrate on one. If you can beat it, then you can start thinking about another one and so on.