No sport has thrived as long as horse racing. No doubt, it's one of the most popular sports in the world. It has a rich history: a history that revolves around betting. Betting on horse races is legal in much of the United States. In the age of the internet and mobile devices, that often includes online wagering.

Most betting sites accept wagers on horse races all over the world, plus they offer many unique advantages. Below is a list of the highest ranked horse racing betting sites.

Always check the injury report. Injuries are huge in NFL gambling and can mean the difference between a win and a loss.

Don’t be afraid to double up on Monday. If you are down and like the Monday game double your wager.

Keep your cool. Never chase your money. Meaning never wager on games because they are the only thing to place a wager on.

Control you bankroll. Set a certain amount you are gone to bet and stick with that all season.

Start early. Usually the lines are a little looser in the beginning months of the season. So start your season with the NFL season.