There are five Grade A events outside of the Grand Slams that carry the greatest ranking points on the Junior Circuit. To be eligible for a year-end ranking a player must, amongst other stipulations, have participated in a minimum of three Grade A tournaments.
As these tournaments are held in higher esteem they are also held to higher organisational requirements. The tournaments have a wide geographical range, with Mexico, Japan, Italy, USA and Brazil acting as hosts, allowing players from all over the world to have the opportunity to attend.
在青少年比赛中，除了4大满贯，5项A级赛是积分最高的，选手要想有排名，就必须至少参加3项A级赛
A级赛分别在墨西哥，日本，意大利，美国和巴西这5国举办
