I've just had a look at the GPS files for the Newport 200 on Sunday 28th January, and everything looks good. You can download the file from either the
Peak Audax or
Audax UK pages. These both point to the same file, which is a zipped folder containing the GPX file for last year's ride - which is identical with this year's ride. It seems to work, or at least I can load it onto BikeHike.
Failing that, there is a link to the route on
RideWithGPS and I understand you can export a GPS file from that.
Does that resolve any difficulties? If not, DM me and I'll see if I can email it to you.
In the olden days, you would have used the route sheet (supplied at the Peak Audax page). In the not-so olden days, you would plot out your own GPS file from the route sheet. I always found that half-an-hour well spent, as it gave me an insight into where we were going, and I could often find that I could then ride from memory and not need the GPS file afyer all.