"World's Ultimate Running Races" is published by HarperCollins and presents "500 races, 101 Countries, Choose your adventure". The Self-Transcendence 3100 Mile Race is referenced twice in the book: pages 6 and 193.
The book offers to the adventurer in us a seemingly unlimited opportunity for self-transcendence. I love this book as it shows that the human spirit is truly unlimited, if just given the opportunity. And these 500 races present many opportunities.
Rupantar