Just going to leave this out there. Unfortunately, the reputation for Miata racing, primarily in SCCA is that is there must be contact. That perception is very real. As with an old MG, I finance my own car under the watchful eye of the Mistress of Finance, who (usually) must obeyed, I am not interested in the "I can't pass you, so I'll hit you" mentality. Vintage offers an alternative, and is usually looked down upon as inferior competition. It is far from it. If you have not attended one, try it.
And FWIW, there are no trophies.
Show up. Race as hard as you want. It's actually harder to NOT hit your competitor when racing in close quarters...
In vintage racing, even the Spec Miata racers don't want to race against other Spec Miata racers!