Build phase

The build phase is a training period focused on increasing endurance, strength, and speed. It typically follows a base phase and precedes a peak or taper phase. During this time, runners incorporate more intense workouts like tempo runs, intervals, and hill repeats to enhance performance. Real-world examples include marathon training plans that gradually increase mileage and intensity. This phase is crucial for adapting the body to race conditions, improving lactate threshold, and building mental resilience. Properly executed, it helps runners achieve peak performance on race day.