You've reached the pinnacle of achievement, congratulations! Here's a rundown of your accomplishments:
10,000 miles: The Century Club - You've completed a whole 10,000 miles without breaking a sweat (or your shoes).
50 marathons: The Ultra-Elite - You've run 50 marathons in under 50 years, defying the laws of physics and sanity.
The 4am Finishers Club - You've completed a marathon in under 4 hours, because who needs sleep, anyway?
And, of course:
The Couch to 5K Program: The Sequel - You've gone from couch to 5K in 5 minutes flat, because who needs training?