In one of my last training workouts before my first Ironman in the early '80's, I wanted to do a long ride followed by a long run. I decided the long run was going to be the San Francisco Marathon. At the time I was living in Monterey. I left my house at midnight and rode 130 miles in the dark and into the morning light. I arrived at the starting line 20 minutes before the race start at 7 am. I locked my bike up, changed my shoes and clothes, ditched my stuff in the bushes and did the marathon in just under three hours. I never did that again.