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 and endurance, as athletes must maintain a fast pace while also having the stamina to finish strong. Runners often train with a mix of sprinting and longer runs to build both their speed and aerobic capacity. Key events in middle-distance running include the 800 meters and the 1500 meters, which are popular in competitions like the Olympics and World Championships.