How To Speed Up Your Run Without Even Trying
Run Behind Another Runner

When running at a faster speed, it creates a bit of wind resistance. It is not as active in running as in bicycling, but if running fast enough, the air can be robust enough to slow down the speed of a runner. By hiding behind another runner, the wind can be blocked. When competing in a race, it should not be too hard find another runner to be a personal windbreaker.
Keep Up With Other Runners

There is another advantage to running with other people. Seeing others running at the same speed assists in convincing the subconscious that one needs to keep up. Other runners provide not only a wind break but also a psychological boost. When racing, it is helpful to run alongside a group that is running at the speed one would like to achieve. In fact, most big races offer pace groups depending on personal goal time. For example, if one is looking to finish the marathon in 3 hours, find another runner holding a “3:00” sign and that is the pace group leader.