So today, I did a walk with my DenverSpark team and a C25K run on my own. Both were a little more than 2 miles, but one was 30 minutes and one was 45 minutes. How is it possible that when I plugged them into the fitness calculator I got the same number of calories burned for each one??? Shouldn't the run/walk have burned more calories than the walk? BTW I used the map my route for both if that makes a difference.