Might have been Merlin?? It is towards the bottom of the big hill going into the park turning back to the left. Last one they did was Uphill Both Ways and it is the first trail leading off to the left going down the big hill.
I agree, keeping a dirt track operational is a serious weekly chore. So if they keep it going, the offroad portion should be a cakewalk. But from watching videos of the past racing, it looks like a fast track.