Football players can burn up to 544 calories per hour, which can add up to over 2,000 calories in long practices. Especially during training camps, football players can have multiple practices a day and end up burning over 3,000 calories, according to Men's Health.
It is difficult to determine the exact number of calories burned by professional football players, as different positions have significantly different levels of activity. That being said, competitive football burns, on average, 136 calories every 15 minutes for someone who weighs 150 pounds, according to Calorie Lab. Most football players are well over 150 pounds, which means they will burn even more calories doing the same activity.