Use the strip or track yourself. You never “race”. That means no contests, no official posting of times etc. No “hot laps” for some of us either. You can like test and tune and certainly share your times etc with your friends. But never race.
For example before any HPDE lapping event the Safety Briefing should state several times, “this is NOT a race”. That works well if something happens to your car at those brutal events. Oh and video supporting your contention don’t hurt.