Starting your runs too fast and then slowing down at the end teaches body to do the same thing on a race day.
To break this habit, we use a progression run, whose defining characteristic is a steady acceleration. These workouts start at a comfortable speed, gradually get faster, and wrap up at marathon, threshold, or even interval pace. This kind of acceleration offers your body an opportunity to warm up, helps develop your sense of pacing, and trains you to hold onto your speed–even when you’re slightly tired.