So the 2017 TDF Femmes final stage was a "mass start" stage and the first rider over the line would win, but the riders started based on the time differences from the day before which finished on the Izoard.
2018 Mens Tour stage to Col du Portet was the "grid start", which did absolutely nothing, as Luke Rowe hooned it from the back to do the first couple of kms of the Peyresourde like he had done previously