I got some good replies on Mastodon after Saturday’s post. Longtime friend of the blog Nathan Grigg said he’s always assumed that GPS-measured lengths would be long because no matter how straight your path, the GPS error would make it zigzagged. Then wherami and thvedt pointed out that the official rules of these events say that the race’s distance is supposed to be measured along the shortest path. If the road is curving left, it should be measured along the left edge; if the road is c...
