Just when the American crowd was in a frenzy because of Quirrey's score again, Pansizzi immediately raised his right hand to the referee and said "ge!" somewhat unskillfully.

Although the referee did not hear the words spoken by Pansiqi in the huge cheers at the scene, the referee still knew his intentions through Pansiqi's actions. In the face of the frenzied voices of the audience, the referee used a headset to broadcast to the audience: "Ladies and gentlemen, Mr. Pancici asks for the Hawkeye challenge, and the challenge is tennis out of bounds." ”

For fans familiar with the game of tennis, the Hawkeye Challenge is no stranger. As early as 2006, in order to allow players to get more fair and just punishments, the International Tennis Association decided to officially introduce the Hawkeye Challenge rules in the competition.

Officially known as the Instant Replay System, Hawkeye consists of 10 cameras that track the flying tennis ball and feed the information back to a computer connected to it, which calculates the simulated trajectory. When a player requests a replay, the computer-simulated trajectory will be displayed on both the TV and the big screen in the stadium. The total time from data acquisition to presentation of results in Eagle Eye is less than 10 seconds, and the error is guaranteed to be less than 1%.

Tennis players can challenge the Hawkeye and watch the replay from the most precise angle to question the liner's decision. Each set has 3 chances to challenge Hawkeye, and by the end of that set, even if you haven't used it, you will only have 3 chances in the next set, which will not be accumulated. In addition, if you enter a tie-break, the players on both sides will have an additional chance to challenge on the original basis.

Secondly, when you challenge in each set, if it is confirmed that you failed the challenge, that is, the original penalty of the division is accurate, then you will be deducted once; If your challenge proves to be successful, then you still have 3 uses in the session.

It can be said that in the more than ten years since the launch of Hawkeye, the incidents that affect the outcome of the game due to misjudgment of the division on the tennis court can almost be said to be extinct. Thanks to the use of this technology, the fairness of tennis matches has also been greatly enhanced.

While all tennis players enjoy the benefits of the Hawkeye Challenge, other sports seem to see the superiority of the technology as well. Gradually, in badminton, racket and other courts, the figure of Eagle Eye technology also appeared. Even football, the world's largest sport, has a goal-line replay technology that is very similar to the Hawkeye in some events. It is believed that after the full rollout of this technology, there will be no more misjudgments on the football field.

In addition to challenging the line's decision, many players often use the Hawkeye challenge as an additional timeout. This situation usually occurs when the opponent is in a bad state or is not in good shape, and this sudden pause can be regarded as a new on-court tactic to break the opponent's coherence.

The reason why Pancich took this challenge was that he was really not sure if the ball was out of bounds, and on the other hand, he also wanted to use this timeout to disrupt Querrey's rhythm on the court.

In addition, this Hawkeye challenge is the first challenge of Pansiqi's career, so it is quite memorable. Due to the high cost of the Hawkeye challenge system, he didn't have it at all in the low-level competitions he had participated in. In high-level tournaments such as Grand Slams, only a few central courts are equipped with Hawkeye equipment, and it is not possible to use Hawkeye challenges when participating in competitions.

After the referee explained the situation to the audience, the large screens hanging on both sides of the arena began to play the Hawkeye replay. The American crowd was dissatisfied, and there were loud boos from the audience, as Panci's sudden challenge disrupted the pace of celebration. However, with the appearance of the replay screen, the attention of the audience was all attracted by the big screen.

"Smack. Syllable.. Syllable.. As the trajectory of the tennis ball appeared on the screen, the audience spontaneously applauded rhythmically. At this moment, everyone's eyes are firmly focused on the tennis trajectory of the computer-animated virtual replay, for fear of missing any small moment.

The next moment, the circular shadow created by the tennis ball landing appeared on the big screen. And looking at its position, it seems to be right on the outside of the sideline in the bottom right corner. From this dimension, even Hawkeye can't tell if the ball is on the line.

As the picture continued to enlarge, the audience finally saw clearly, only to see that the shadow of the tennis ball was pressed on the sideline, and its overlapping area was as thin as a hair.

After confirming that the ball was in bounds, the referee immediately reported the score, and Quarey led 30-0, and announced to the court that Pancicic had two more chances left in the first set.

This time, the American audience is higher than before. If they were overjoyed when the tennis ball landed before, then now after this little episode, they can be regarded as completely crazy. Several times the cheers of the previous one, it almost overturned Arthur Ash's newly added ceiling.

After confirming that the challenge had failed, Pansic shook his head with a wry smile, and at the same time turned his head to look at the line on the bottom line on the right side and gave him a thumbs up. At this time, the TV broadcast screen had already been aimed at the sharp-eyed division, giving him a big close-up.

For Quirrey's risky opening play, Panci actually still doesn't understand a little. After all, Quirrey is the higher-ranked player, and if you want to fight, you should use it yourself. What's more, this kind of fight is too risky, and often before it has any lethality to the opponent, he has already disarmed and surrendered because of too many unnecessary mistakes.

Especially the two points that just ended, Pansiqi was even more incomprehensible. The two points conceded in a row can be said to be only a millimeter, even if the tennis ball flies out a little bit, the lead is Pansic. Therefore, in Pansiqi's view, the opening two points can only be blamed on his bad luck.

However, the next few minutes made Pansiqi's face completely gloomy.

As he gradually adapts to Quelrey's mid-field chases, Pancic's reaction speed is getting faster and faster, and the quality of his return is gradually improving. However, for Pansiqi's aggressive return, Quirrey still ignored it, even if he couldn't get it, he still forced his shot, and attacked directly according to the most extreme landing point.

Among them, due to the excessive power of one ball, Quirrey really hit the bounds, but the other two balls were extremely thrilling on the sideline. In this way, in the face of Pansic's return serve, Quirrey actually completed four direct combat points, and this success rate made Panci have to realize that this can no longer be explained by luck alone.

In this way, in the first game of the opening game, Querrey successfully held serve. Please pay attention to the latest chapters in the future