All the distances are available as GPX files, route descriptions and maps…
5 mile route: GPX files description: 
bt5mroute_des map: bt5mroutemap
10 mile route: GPX file description: bt10mroutedes map: bt10mroutemap
Alternative 10 mile route for November 2024 GPX file and route map.Alternative 10 mile route Nov 2024
Alternative 10 mile route for 2025 GPX file and route map Alt 2025 10 mile route
13 mile route: GPX file description: bt13mroutedes map: bt13mroutemap
15 mile route: GPX file map: btm15-2map
Want to learn more about how the route was created and why in the first place? Read a newspaper clipping published when the route went live here.