I have no issues with posts like this in this group, as long as there's a connection to nature in the post and ensuing discussion. There are qualitative differences between running through natural settings and those full of concrete and blacktop, and I feel as though this is an appropriate avenue for folks to explore that.
Additionally, there had been interest during the last round of community suggestions for an "Outdoors/Hiking" type community. While there wasn't enough to get the green light, several mods felt that this corner of Beehaw would be an appropriate forum for those posts until there's enough engagement around those for their own community. If a post is more about technical aspects of running, you may be asked to post in !sports instead.