Preparing for a marathon: How to run 26.2 miles in 16 weeks Thinking of running the London Marathon? A two-time London marathoner shares her essential tips, honest advice, and exactly what to wear for race day success - including 2025's extreme heat... London Marathon 2026 Date Nurse Denied World Record For Not Running London Marathon In A Skirt Fox News London Marathon 2026 Website The first ever London marathon, and the first ever 26.2 mile marathon, was in fact the London 1908 Olympic Games Marathon race. This race was A Big Deal for a number of reasons, but the biggest of all was that it established the distance of all marathons for the rest of time