Middle-distance running is a track and field event that typically includes races ranging from 800 meters to 1500 meters. These races require a combination of speed, endurance, and tactical pacing, as athletes must manage their energy throughout the race. Common middle-distance events include the 800 meters and the 1500 meters, both of which are featured in major competitions like the Olympics and World Championships. Runners often train with a mix of speed work and longer runs to build both their aerobic and anaerobic capacities, allowing them to perform well over these challenging distances.