Broadly there are two different categories of this branch of the motorsport, stage rallies and navigational rallies all run under the auspices of the MSA (Motor Sports Association). Take a look at the About Rallies page for an overview of the various event types and the other pages under this section for more detailed information.
Regs and entry form for this years Rod Wray series are now available. See 'Regs and Entries'
The 2018 Yearbook is now available giving information on all the clubs trophies. See "SDMC Trophy Tables"