For years, the marathon leg of an Ironman seemed to have a ceiling. Mark Allen’s legendary 2:40:04 in Kona in 1989, achieved in the white-hot crucible of the “Iron War” with Dave Scott, became the gold standard for what was possible after 180 kilometers of swimming and cycling. It held up for nearly three decades ... Read more The post What’s Fueling the Fastest Ironman Marathons in History? appeared first on Marathon Handbook.
