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Pacing strategies in track and field are the varied strategies which runners use to distribute their energy throughout a race. Optimal strategies exist and have been studied for the different events of track and field. These optimal strategies differ for runners in sprint events, such as the 100 meters, runners in middle-distance events, such as the 800 meters or the mile run, and runners in long-distance events, such as the 5000m or marathon. Additionally, pacing typically differs between different styles of races. For instance, in a time trial, where the goal of a racer is simply to run the fastest time, participants will typically employ the aforementioned optimal pacing strategy. However, in a championship race, where the goal of the racer is to win, the pace is typically slow in the beginning of the race and gradually speeds up for a sprint finish, often meaning the race is run with a negative split. Typically, to run a world record, the runner must employ a near-optimal pacing strategy. (Full article...)

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