Isn't that how NAR competitions are run now?
Instead of launching at a big meet, you launch at your local field with another NAR member present.
Submit your results, honor system applies.
EDIT: It's called the "National Rocketry Competition (NRC)".
Info here:
Contest Flying | National Association of Rocketry (nar.org)
Excerpt:
"In 2017 the NAR completely revised the competition process to eliminate the annual accumulation of competition points and shift emphasis to individuals flying competitively against other individuals from throughout the U.S., each at their own local launch, in a half-dozen events that are standardized for each contest year but change between years. This new process is called the “National Rocketry Competition (NRC)”. Any two NAR members (at least one of them an adult) can get together and fly any or all of the NRC events anytime, anywhere as long as you register the launch event 7 days or more in advance through “
Launch Windows”. Anybody can do this, it does not have to be done through an NAR section.
When you’re done flying one of the NRC events, you just report your flight scores and they get posted to a national “
Scoreboard” where you can see how you are doing in that compared to everyone else in the US that year."