Track events range from the very fast 100-meter race to the much longer 10,000-meter run or 20,000-meter walking events. Nutrition recommendations must consider the distance involved. Daily workouts are intense. Athletes may compete several times a day. For most very high-intensity, brief events, diet has less impact than other factors such as genetics and training. Compared with distance runners, middle-distance runners have more moderate carbohydrate needs. Learn more about the various track events and the de- mands of training at the USA Track & Field website (www.usatf.org).