Your PB Starts Here! How Marathon Course Distances Are Measured With Pinpoint Accuracy
Ever run a marathon and wondered, "Is this really 42.195 km?" The truth is, the distances of the marathon courses we run are measured with an astonishing level of precision and strictness. Especially for international competitions where world records are set, courses must be "certified" by World Athletics (formerly IAAF) under rigorous rules. So, how exactly do they measure such a long course? Let's uncover the secrets!