No curbs, no walls, no worries! Look at my times I DNF twice! That means I missed a turn or didn't do it right. Ha3. If you watch my 2nd run, I murdered 2 cones towards the last part. Ha6. They have a course walk so you'll be familiar with the course. Also on your 1st run, you could request of an instructor to drive your car and show you the "line". Come on Jon! I'll give you a deal, come join me the next run. If you REALLY HATED it, I'll personally refund you the $40 entrance to the event.