Coco Gauff Exits China Open 2026 in the Fourth Round: Eight Double Faults and a Lost Title

BEIJING — Coco Gauff, former world No. 2 and reigning China Open singles champion, left this year's tournament in the fourth round after losing to Elise Mertens 3-6, 3-6. According to the match statistics, the cause of the defeat lay with the American player herself: 34 unforced errors and 8 double faults in a match that lasted only two sets. That is the single most diagnostic number for Gauff's long-standing technical liability, namely instability in the serve motion, which opponents have repeatedly exploited whenever a match enters a tense phase. A battle-hardened returner such as Mertens is precisely the type of opponent this playing style finds most uncomfortable. Speaking after the match, Gauff said: "The level was there at some points, I just didn't sustain it." That self-assessment matches the numbers: this was a defeat caused by poor error management rather than by being outplayed. In other words, the American player lost a match that was hers to lose. Earlier, in the third round, the match between Gauff and Sun Xinran, a 16-year-old home player, was interrupted by a lighting failure. After reviewing video footage, the umpire ordered the point to be replayed. Analysts judged that the video-review rule operated exactly as designed; any controversy lay in public opinion rather than in the rules themselves. On the points side, a defending champion exiting in the fourth round means a substantial points defence was lost in a single week, in the middle of the Asian hard-court swing that follows the US Open. The drop is event-specific and does not necessarily reflect a decline in level. Even so, the pressure to defend points at the remaining events of the Asian swing is correspondingly higher. Most notable of all were the events away from the court. The Women's Tennis Association (WTA) issued a statement saying it was appalled by the abusive messages directed at Gauff, and confirmed it was seeking action. The American player herself said: "I just turn off my phone and move on." That approach points to a self-directed way of setting boundaries, yet it also raises questions about the role of psychological support within the professional competitive system. Meanwhile, in the adjacent section of the draw, Iga Swiatek remained the name to watch, showing that the group contending for major titles is still concentrated among a small number of familiar faces. One flat week for Gauff therefore does not change the wider picture, but it is enough to remind that at this level, consistency in the serve motion remains the strictest measure of all.