I had a guess what the 3 loops might be, and I was pretty much right. The thing is, the organiser might well have a problem! One of the loops goes out over Widdop road which is shortly going to be subject to a road closure for new water mains to be laid.
Ok - I've just checked. Pedestrian access will be provided past the works, so bikes can at least be walked through.
It's a pretty tough little collection of hilly roads is that! It is the kind of thing I'd do if I was fit, but I'm not going to be fit enough to enjoy the event in just two weeks time! If you fancy a hilly challenge in this area though, I'd say that is a good one.
There are some long steady climbs and some short steep ones and everything in between too. There are even one or two that I haven't taken forum rides over yet! There is one short steep climb at the back of Tod railway station that I've never ridden, everything else I have at one time or another, most of it many times.
Another thing - the event's AUK page reckons it is a 100km event. The gpx route file makes it 112 km which is a bit of a difference!