To also assist you with the perfect shot, you need to know your sport. With hockey, you know that players are going to be moving towards the goal to try and score. So, focusing on this area will almost guarantee that you will get at least one great action shot. In this situation, you’re going to use zone focus, where you point your camera on one section and take a picture when players move into the area. Focusing on the zone for team sports, including soccer, hockey and curling, works the best.
But, zone focus won’t work for every sport. Individual or couple sports, like figure skating, are not moving towards a goal or end zone. In figure skating, skaters are moving around the ice in the dark with only a spotlight. In this situation, you should use follow focus, where you keep the subject in focus until you get the right shot.
While it may be hard in team sports, you should try to keep your subjects faces in focus. You really can see the intensity of the action in your subject’s expressions, allowing for a more dramatic shot. The Rule of Thirds will assist with this. This basically says that you

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divide up your gram into three areas both vertically and horizontally. Where these lines meet is where you should place your subject. By basically allowing you’re subject to move into this area, it will be in perfect frame.
Finally, you want to have shutter speeds that are really fast. Sports are fast-paced events, and your shots will come out sloppy if it’s not done right. You need to capture the movement by speeding up to that movement’s speed with your camera. So, your camera should be nearly twice as fast as the fastest movement of your hand-holding speed.
Your film can also help with freezing the action. Basically, the higher the ISO, the faster your camera speed will be. Always buy your film around the 1600 speed. You won’t regret the extra cost.