Here is my proof-of-work from this past weekend. It took me 21 hours 18 minutes to finish a 100 KM trail run. This proves I did the necessary training and preparation to complete the race. Sometimes I wonder what society would be like if we required something like an ultra marathon as a requirement for politicians to run for office. At the very least, it would keep these extremely old fucks from further running the country into the ground. 
Discussion
Damn dude I wish I could accomplish something like this.
You can do it! It helps to get something on your calendar to keep you motivated for training. I’m by no means an elite distance runner but I have finished five 100 mile trail runs and two 100 km runs in the past six years. And don’t get discouraged if you DNF an event I have done that a few times as well. Sometimes a finish is just not in the cards.
Thank you for the encouragement! I’ll keep at it!
One last thing, I tell this to anybody who is interested, if you can do 10 miles at a 10 minute/mile pace you are probably physically fit enough to do a 100 KM. Mental toughness and will power is something you will have to find out on your own when you make the attempt.