I ran a trail race today.
The race's website rated that hills as a 4 out of 5 on a difficulty scale, and they weren't kidding. They also said that you could stay dry when crossing a creek if you were careful. They may have been kidding about that.
This was my first time running on trails, and I am totally hooked. Unfortunately, there aren't a lot of trails to run on in Lubbock.
Anyway, between trying not to fall into any ruts or turn my ankles on loose rocks, and stay out of the way of other runners, I am completely worn out. But hey, I got the PR I was looking for.