Eating back calories burned from exercise

segooey

I understand you are supposed to eat back calories burned from exercise, but I can't possibly eat back all the calories burned from my workout. I'm wearing a chest strap heart rate monitor that calculates calories burned and each hockey game I play burns between 1400-1700 calories. Today was a two hour session - 2300 calories burned. Is there a minimum of that I should absolutely be eating back?

http://www.myfitnesspal.com/food/diary/segooey

All help is appreciated!