After the Kentucky Derby, horse racing is back on the American sports radar for a few weeks, at least until the Preakness Stakes. Then it could go one of two ways — a Triple Crown quest into the Belmont, or horse racing will slink back into obscurity. The good news is that betting on horse racing is legal across the United States, unlike betting on other sports, so you won't have a problem getting picks down online.
A parimutuel system is used in horse racing, which is different from betting on a basketball or football game against a point spread in Las Vegas.