The 100s are just insane, I know a number of people who have finished them but that is just too much for me. In 2017 Gunhild Swenson, who I've run with locally, finished the Western States with 6 seconds left before cutoff, and she did that at 70 years old. I haven't run in a number of years but am getting myself back to it slowly. I seem to always be injured in some fashion so it's more about managing the pain and effort levels while still progressing. I gave myself over to the farm and am in the process of extracting myself from the burdens to have more time to get back to running.