Thats 40 Km or 26 miles. My normal run is 8 Kms that I do regularly. Thats no problem for me to run that at any time. Sometimes I double it up and do 16 Km. Thats a bit painfull the next day.
If I run 40 Kms it will be killer – plus it will help burn my gut fat. So with that goal in mind I have some motivation. I will just bash at this untill it is done. It may take a few runs to get up to it. I may have a few little rests during the run too. But I will do it.