If you like running multi-day loops, this is the app for you. You build your race plan from time blocks. This could be any length of time, default is 4 hours. In the settings tou can set the length of a loop (the unit is what is configured on your watch). For this to work properly, you should use auto lap by position. Before starting the activity, set the position to the start line (or shortly after the start line) to count a completed loop. There is a safety measure to prevent false laps - if you "complete" a lap (i.e. pass the set position) faster than running a 4 min/mile, it will not count. Just for fun, it can also you show how many sweets or beverages you've earned, based on calories burned. These can be switched off in the settings. In the seetings, the default calories per sweet or beverage can be set and will override the defaults. The total distance shows the loop length times total laps, and that is the official distance the race will give you. There is an option to also show recorded distance from GPS, mostly caused by going to the bathroom or visting aid stations etc.