Strava shows that distance, never looked at RWGPS. I'm always surprised to see that some of my friends use RWGPS like most people use strava. I should probably set that up now that strava hates free users so much.
Looking for routes on rwgps, it would be really nice if they didn't show indoor rides where people used their gps to record the ride but the ride is just a squiggle around their house.