Tennis was conceived in France, born in the United Kingdom, and popularized and reached its peak in the United States. It is a sports activity performed on lawns initiated by Englishman Winfield. It is also known as the second largest ball game in the world.

Tennis matches are divided into two forms: singles and doubles. Players use rackets to hit the ball over the net and into the opponent's court. The purpose of each player is to try his best to hit the ball to the opponent's court.

Tennis Grand Slam

The four Grand Slams are the most important tennis events every year. They are the Australian Open, the French Open, the Wimbledon Open and the US Open. When the first Olympic Games were held in 1896, tennis was listed as a competition. However, from 1928 to 1984, due to differences between the International Olympic Committee and the International Tennis Federation on the issue of "amateur athletes", the tennis competition event in seven consecutive Olympic Games was excluded from the official program until the 1988 Seoul Olympics. It was restored as an official competition event.

tennis open

The Open era began in 1968, when the four majors reached an agreement to allow professional players to participate in the competition and compete with non-professional players. Since then, it has become possible to earn income from playing tennis, and the first Grand Slam tournament to become an Open Championship was the 1968 French Open.

Tennis scoring

Because the most primitive tennis game originated in the palace, it is understandable that the scoring method is based on local materials. They use a clock that can be turned to score. Every time they score a point, they turn the clock a quarter, which is 15 minutes (a quarter, a moment). In the same way, if they score two points, they turn the clock to 30 minutes. Of course everything is based on their convenience. This is the origin of 15 points and 30 points.

As for 40 points, it's weird, it's not a multiple of 15. This is because in English, 15 points is pronounced "fifteen", which is two syllables; 30 points is pronounced "thirty", which is also two syllables; but 45 points is pronounced "forty-five" in English, which becomes three The British felt that the syllable was a bit difficult to pronounce and did not conform to the principle of "convenience", so they changed it to 40 points (forty), which is also a disyllabic. This is where the seemingly illogical 40 points comes from. Although this scoring method seems a bit strange, it is still used according to tradition. After all, everyone is already accustomed to this scoring method from the palace.