The title held by the best marathon runner is often referred to as the World Record Holder for the marathon, recognizing an athlete who completes the distance in the fastest recorded time. As of my last knowledge update, the men's marathon world record is held by Elijah Manangoi, while the women's record is held by Brigid Kosgei. These records are confirmed by the International Association of Athletics Federations (IAAF) and are significant achievements in the realm of long-distance running, showcasing extraordinary endurance and training.