I was born in scotland and have lived in australia for the past 9 years, i have been betting sports for a living for the past 5 years, If there is one word i can link my ability to constantly profit its DISCIPLINE, this is the one key that seperates the average capper from a brilliant capper, obviously you need an indepth knowledge of the sports you choose to bet on but without discipline you are going to go broke over and over again.
My most profitable sports are SOCCER NBA MLB and TENNIS, i never make a pick without deep deep research into that particular game, my average picks per day would be around 3 or 4 but this can vary from 0 to as many as 7 or 8 plays,
Many people gamble for the thrill or for the rush it can provide, i do neither of these it is about one thing for me PROFIT!!! That means a boring investment style aproach but it works and will continue to work!
Cappermetrics - click a sport for detailed results. More info.