The development of tennis tournaments during the COVID-19 pandemic has become one of the sports that is in demand by many people. This is because tennis, which is played without body contact, is considered one of the sports that has little impact on the spread of COVID-19. Therefore, the tournament was held to keep the body's immunity fit and away from covid 19. For an effective and fair play tournament, it needs to be regulated with mature techniques and not all participants understand this. So for that we held a PKM activity with the title "with the Socialization of the Half Competition Tennis Competition Rule Best Pool Winner Count." This activity was held in Pekanbaru, Riau Province at the inter-club tennis championship event. Participants will gain useful knowledge and understand the rules of fair play without unsportsmanlike play.