Learn everything you can about the teams and the sport. Use Twitter to gain insight on lines and bone up on all the analysis you can. Be sure to understand your own stats, too: your winning percentage, units, and ROI. This bit might seem a little tedious, but time spent on research will help protect your bankroll.
To win betting on sports, you must familiarize yourself with different betting markets. Professional bettors can find value in all areas of a game on the best online sportsbooks, which means they need to be able to target different markets on sports betting sites for different games.