For the past 13 months, the Marathon des Sables (MDS) 120 Morocco has been the driving force behind my training, writes James. Relatively new to ultra-distance running, I saw it as a sensible stepping stone towards the infamous 250km MDS Legendary. What followed was undoubtedly the toughest, but also one of the most memorable and rewarding running experiences of my life. The format sounds straightforward: three running stages over four days, covering approximately 120km, with