The Solihull CC ran something very similar a few years back although this is a completely different course than what they used which had controls at Bosworth Battlefield, Rugeley and Kinver.
Still looks to be a good route though and will have another look nearer to the time if not away.
Circuit of Birmingham?... I have been in touch with Trevor at Solihull CC, but they won't organise any Audax next year... they didn't this year either.
Route is completely new and surprisingly rural and scenic... if anyone thinks is going to be a long slog through suburbia (a la Velo Birmingham), think again...
Entries trickled in quite rapidly over the past 24 hours since I opened, to the point where the event is already financially viable 9 months in advance... more entries will mean more on offer on the day...
I would specially like to invite folks on "unconventional cycles"... trikes, tandems, velomobiles, fixed, folding, recumbent etc...
Also, if anyone local wants to help on the day, you are very welcome. There will be a helpers "recce" ride a couple of weeks ahead too