When I was dotwatching, Rory asked me to look at a few question marks like that at the end, where they weren't sure exactly where a rider had been. First thing that I did was to follow them on Strava so I could see their tracks and get a more detailed view. If they weren't on Strava, you just kind of piece it together looking at the distance that they have travelled between tracker points, whether the implied average speed makes sense for the road, etc. Generally you can work out what has happened if you have a good look at it!
When I was dotwatching, Rory asked me to look at a few question marks like that at the end, where they weren't sure exactly where a rider had been. First thing that I did was to follow them on Strava so I could see their tracks and get a more detailed view. If they weren't on Strava, you just kind of piece it together looking at the distance that they have travelled between tracker points, whether the implied average speed makes sense for the road, etc. Generally you can work out what has happened if you have a good look at it!