Alexandr had been running 185mi/wk average to train for this over the past 3 months. Lots of marathon and 2x marathon runs on back-to-back days. That said, th

Alexandr had been running 185mi/wk average to train for this over the past 3 months. Lots of marathon and 2x marathon runs on back-to-back days. That said, there's an enormous chasm between someone like this training for a 24hr world record and your or I just training to finish a 24hr race on our feet.