Coco Gauff starts US Open 2026 like a true champion: 64% second-serve points won and the 2,000-point puzzle

I have watched many first-round Grand Slam matches in my sports journalism career. But rarely has a match said so much about a champion as Coco Gauff's victory over Zeynep Sonmez at this year's US Open. Not because of the score, but because of how she finished the match — clean, efficient, and calculated. When I was a young track and field athlete in Hai Phong, my coach used to say: "The best sprinter is not the fastest one, but the one who knows when to accelerate." Gauff, at 22, seems to have learned that lesson perfectly. The match lasted only 1 hour 20 minutes — the second-shortest first-round match of her US Open career. While 5 of her previous 7 opening rounds went to three sets, this year she handled her opponent like someone who knows exactly what she needs to do. The most notable number is not in the scoreline. It is the 64% of second-serve points won — the third-highest of Gauff's US Open career. To understand this number, I need to put it in context: the WTA tour average typically hovers around 48-52%. A player who wins 64% of second-serve points is not just serving well — she is turning her biggest weakness into a weapon. I remember last year, when Gauff nearly lost herself to a string of double faults. She had to change coaches right before the 2026 US Open — a risky decision many called crazy. The result? A first Grand Slam title. But this year's story is different. No chaos, no crisis. Just the stability of a player who has found her winning formula. That stability is not accidental. Look at Gauff's results heading into the US Open: a Cincinnati title — the second consecutive time she has done this before the season's final Grand Slam — plus two semifinal runs at Wimbledon and Toronto. This is not a player chasing form. This is a player deliberately building momentum. But there is an issue the original article does not mention, and I think it is the most important one: Gauff is defending 2,000 champion points from last year's US Open. In the WTA's 52-week rolling ranking system, these points expire right after this year's tournament. What does that mean? If she reaches the semifinals, she still loses about 1,300 points. If she exits early, her ranking could fall out of the top 5. This is a points-defense cliff — and it creates psychological pressure that the "confidence and momentum" narrative cannot fully capture. Perhaps that is why her first-round match was so fast. Gauff is not just playing tennis — she is managing her energy. Every minute on court is calculated. Every set finished early is a saving for the second week, where the real opponents are waiting. And that opponent could be Paula Badosa or Daria Kasatkina in the second round. Both are top-20 players. Badosa with her powerful forehand could exploit Gauff's weakness; Kasatkina with her patient style could force Gauff into long rallies. But looking at current form, I believe Gauff has enough weapons to overcome both. Her court speed is world-class — she can neutralize Badosa's power and overwhelm Kasatkina's counterpunching. There is one small detail I really liked in this match: Gauff applauding Sonmez's highlight shots. It sounds simple, but to me, it is a tactical signal. She does not let herself be rattled by an opponent's peak moments. She acknowledges them, then continues her work. That is the maturity of a champion. The world No. 1 storyline is also being discussed. Gauff could reach the top if she wins the US Open and Rybakina exits early. But I think that is too narrow a scenario. The real No. 1 race is a four-player contest: Gauff, Sabalenka, Rybakina, and Pegula. And the interesting thing is that Swiatek — who dominated the rankings for two years — is absent from this race. That is a significant shift in the WTA's power structure. I once wrote in an analysis: "Behind the tactical diagram is a trembling person, hoping and forgetting how to breathe." Gauff this year is not trembling. She is breathing steadily. And that is the scariest thing for the remaining opponents in her half of the draw. The 2026 US Open is not just another tournament for Gauff. It is a test of how a champion faces the points-defense cliff, home-court pressure, and the expectations of an entire nation. If she gets through the first week as efficiently as she did against Sonmez, I believe she has every chance of repeating last year's feat. And this time, no crisis is needed to find herself.