The list of attendees is being maintained on MSR:
https://www.motorsportreg.com/index....2#.Vg9Q19RHaK0
The flyer for the event:
http://www.sdrscca.com/solo2/schedul...2015-10-17.pdf
Registration:
https://www.motorsportreg.com/events...2#.Vg9RcNRHaK0