Whether you are a professional or amateur golfer, the most important thing is your score card. For each game, you can scan the QR code to quickly join golfers. Golfers in the same group only need to record the same score card, and then calculate the handicap and then separate the leagues/balls. Display the list in the friend ranking. You can also check historical performance records later. You can also create an exclusive team for self-management and join friend administrators to create team competitions and rankings.