Home Runs are really hard to hit. But for some reason MLB players make it look so easy. If you have ever seen them in batting practice they barely even swing and they hit the ball 400 ft. Well they have been playing baseball for possibly 11 years or less. A home run only counts if it goes over the fence. A home run mean that you get to go all the way around the bases to home plate. Every time a player touches home plate it counts as 1 run. If you hit a home run with 3 people on base it is called a grand slam.