The trails have been routed to make for a continuous loop. As more are built, they will add to that loop.
The only choice would be to add one mile by taking "Other Way" instead of Karaway, then pick Karaway back up off of Freeride Rd. This week Other Way will be blocked by a ribbon for the race, but if interested, just go under it. Personally, I'd just stay on Karaway and avoid riding a section of road.
Folks riding during the week should listen/watch for gravel trucks at the 2 main road crossings, one on Karaway, and another where Karaway leads into Lemonade (sign across the road).
On MTBProject, find the "Rocky Hill Ranch Loop" to use as a guide. It is listed as a Recommended Route. If you have the Texas area maps downloaded to the phone app you may need to update Texas Area to see the latest RHR trails. There are still intersections with the service roads and this app makes it easy to stay on the loop until we get some better signs up to lead riders around the place.
Currently, the race route is marked with arrows and would be a good way to get a loop in. Then, just do it again till you have enough. 😁
Have fun Albert!