The shoes you get depend on the events you participate in. There are very different types of shoes for sprinters, distance runners, throwers, and jumpers. Below are just examples of what types of shoes go with the different event groups.
Spike Length: Your replacement spikes should be 3/16th in size. Please understand that the spikes they sold you with your actual shoes are most likely too long. Ask Coach Thrasher if you have questions.
Notice the rounded heel. The are designed for 100- to 400-meter events (including hurdles). Sprint track spikes have no midsole, offer little support, and feature a stiffer spike plate. Sprinting spikes have rigid soles that help increase speed while sprinters are on their toes. These shoes are made to be as little weight as possible. These are not made for comfort.
Typically used for the 1600 meter and up races. Notice the thicker heel. Distance spikes use more flexible soles, enabling more natural foot movement and providing more comfort than the sprinting versions. The shape of long-distance spikes also tends to be flatter.
Track athletes who compete in shot put and discus use a significantly different shoe. The “wind up” to a throw can include considerable rotational force and potential for foot torque. Throwing shoes need to have a snug, glove-like fit and supportive structure to maintain stability and control.
Long jump athletes wear shoes that are similar to sprint spikes. Ideally, they provide speed and power, are lightweight, and involve good support on the outer soles in order to prevent slipping during take-off. They also have a bit more support in the heel.
True high jump shoes are very specific to high jumping. These are typically flat-bottomed with a thick sole, catering to the strain that the athlete places on his or her heels. Spikes are also placed at the heel, providing better grip during the take-off.
Sprint spikes can be used, but many coaches like the idea of their vaulters using a jumping spike since it provides a bit more support. Either will work.