Starting from this week, those big-name players have recovered from the tiring "clay season" full of endless top spin and truly entered the fast-paced "turf season" - except for Nadal, Del Potro, Serena Williams, Sharapova, several minor injuries, and former Wimbledon champion Ba

iQiyi Sports 2018-06-20

The tennis world is ushering in a grass court feast this week. The most important warm-up matches before Wimbledon such as Queen's Cup + Halle + Birmingham + Mallorca are all in full swing this week, with big-name stars from all walks of life. Also began to appear on stage. Today, our "Speakers Have Opinion" column also continues to invite our model worker Fox Teacher to talk to you:

From the rolling dust to the green grass

article/Hu Litao

Last week was considered a transition period Well - although the "turf season" has entered in name, the tours held are actually at the lowest level, and the rankings of participating players are generally not high.

Starting from this week, those big-name players have recovered from the tiring "clay season" full of endless top spin and truly entered the fast-paced "turf season" - except for Nadal and Delport. Luo , Serena Williams, Sharapova are the slightly injured, as well as former Wimbledon champion Bartoli, who finally gave up on her comeback.

For fans, the transition from land to grass is very intuitive - the colors change! Just like a traffic light, the red turns green, you can speed up and go straight! I have been watching "The Red Dust" for more than two months, and I am a bit tired of my eyes. It is time to turn to "The Green Grass".

Fans who have watched the live broadcast of Queen's Cup + Harley + Birmingham + Mallorca on iQiyi Sports in the past two days should also feel that in addition to the red changing to green, the players' batting rhythm has also obviously accelerated, and their positions have advanced, and every ball The average round is significantly reduced. In short, compared with the sluggish and slow clay tennis, lawn tennis brings a fresh, clean and crisp feeling.

If we go back to the roots, tennis truly entered the folk from the French court and monastery and became a sport in the modern sense. It originated in England. The more recognized node is that in 1873, Captain Winfield of the British Navy changed the tennis game from an indoor hall to an outdoor lawn. He gave a more specific qualitative description of the venue, equipment, and rules, and published a book titled " The pamphlet "Law Tennis" promoted this activity and thus launched the modern sport of tennis.

In 1877, the first Lawn Tennis Championship was held in Wimbledon, England, outside London, which was the predecessor of Wimbledon. In the early days, among the four Grand Slams, except for the French Open, the other three Grand Slams were all grass-court events. US Open and Australian Open were originally copied from Wimbledon in different places. Later, they kept pace with the times and adapted to local conditions and gradually evolved into two hard-court Grand Slams.

The soft and sticky clay court can greatly buffer the speed of the ball after it hits the ground. At the same time, the elastic properties of the surface can greatly increase the bounce height of the ball after it hits the ground. This causes each ball to form a dead ball (from one ball to another). Jumping to two jumps) takes more time.

The characteristics of grass courts are exactly the opposite of clay courts: the coefficient of friction between the ball and the ground is very small when it lands, the second speed becomes faster, and more importantly, the flight trajectory after rebound becomes lower. Therefore, the CPI index (Count Pace Index) of some grass courts (such as this year's Stuttgart) is not higher than that of most hard courts (the higher, the faster), but players' perceived ball speed (including fans' perceived ball speed) will feel faster. This is mainly due to the feeling that grass courts have lower bounce, and the distance between the two jumps of the ball is shortened, leaving players with shorter reaction time.

Different venue characteristics will definitely have different impacts on players with different playing styles. Simply divided, clay courts are suitable for baseline and anti-reverse players, while grass courts are suitable for all-court and offensive players. This standard is only suitable for distinguishing ordinary players. For the "Big Four", they are another type of existence: they are all experts in offensive and defensive transitions, with comprehensive playing styles. The most important thing is that they are extremely adaptable. Any venue can be used by me, and it will not become an objective factor that limits my performance. Therefore, among the "Big Four", Fernald has completed the "Grand Slam", and the "second" Murray has also completed the "Full Asia".It can be said that what we are experiencing now is the "all-powerful era" in men's tennis.

But this was not the case in the early years. Sampras , McEnroe, Edberg , Becker , these legendary seniors who adhered to the serve and net style, failed to play in Roland throughout their careers. Garros has won the Musketeers Cup, and both have won Wimbledon more than once on their professional resumes.

On the other hand, clay court masters from Spain such as Bruguera, Berasategui, Moya , Costa, Ferrero , have all missed Wimbledon more than once in their careers. The most extreme example is the 1995 French Open champion Muster . He can be regarded as the king of clay court for a generation. He was also the world's number one. He won 44 singles championships, and 41 of them were clay court events. The most evil thing is Never won a match at Wimbledon.

Cecchinato, the biggest dark horse in the French Open men's singles this year, when he heard that his ranking had reached the top 30 (28th this week) and that Wimbledon might become a seed player, he said half-jokingly: "If I become a Wimbledon seed player, Netseed, this is good news for others, right?” Why do you say that? Cecchinato himself knows very well that as a "clay expert" who plays almost exclusively on clay courts and avoids playing on hard courts all year round, his playing style also has too many traces of clay, and his grass-court competitiveness is not the same. It will not be automatically upgraded because of the support of seeded players. If non-seeded players draw him in the first round, they will think it is a good pick! The 25-year-old Cecchinato has only played one grass-court match so far and lost. He has not played since the French Open this year, but he should still go to Wimbledon to see how many rounds he can win?

The reason why Cecchinato is only likely to become a Wimbledon seed player is because Wimbledon’s self-contained seed ranking system. The specific rules are: ATP real-time points in the previous week of Wimbledon + grass-court event scores in the past 52 weeks. It is composed of double the sum + 75% of the best score on grass in the 12 months before Wimbledon of the previous year to the previous Wimbledon of last year. This is a bit complicated, but based on the scarcity and uniqueness of grass-court games, this points system also has its rationality: it can avoid some players with high grass-level skills but low actual rankings from encountering high-ranking players in advance, reducing the number of players. Non-combat attrition losses in the lineup.

Whether Cecchinato will be seeded at Wimbledon, I didn’t calculate it, I can only calculate it Federer Regardless of whether Halle defends his title this week, he should be the top seed in men’s singles at Wimbledon this year. As for whether Serena Williams can become the women's singles seed? We still have to wait for the All England Club to come up with a new algorithm.