I think this site is great. However, two things that I think would help make it indispensable and the go to for all trail runners would be:
1. activity logs similar to those hosted by the gps watch manufacturers or sites like Strava. - you could allow users to look at improvements in average pace, distance, pace on inclines and descents, and PRs (including progress) on goto routes like Green Mountain-Ranger-Saddle in Boulder
2. I'm sure this gets mentioned several times a day, but new route planning that doesn't involve establishing or publishing that route as a featured run. As training gets longer or runners seek out terrain for specific reasons they tend to link together several trails/routes and in this process they aren't always traveling in the usual direction.
Thanks for the feedback! We have had similar suggestions/requests and while adding these features isn't on our short-term to-do list, we plan to keep expanding the functionality of both the app and the website so keep an eye open for improvements down the road! As a runner myself, I selfishly would love to see a route building tool as well :)