On July 24, 2017 (June 2, 2017), Sun Yang 400 reached the top of the swimming world championships. On July 24, 2017, the World Swimming Championships continued in Budapest. The competition for the first gold medal in swimming, the men's 400-meter freestyle, China's Sun Yang, almost all the way ahead, the advantage is extremely obvious, with a time of 3:41.38 to win the three consecutive championships of the event. Horton won the runner-up in 3:43.85, and Italy's Deti swam in 3:43.93 to win the third place. Men's 400-meter freestyle, the first swimming gold medal produced by this world championship. As the winner of two consecutive championships in this event, Sun Yang swam in the preliminaries with a time of 3:44.55, ranking second in the group and second overall, and successfully advanced to the finals. Austria's Oboko finished first in the preliminaries with 3:44.19. Australia's McKeon, South Korea's Park Tae-hwan, Rio Olympic champion Horton, and British star Guy all qualified for the finals. In the final, Sun Yang was in the fifth lane, Oboko was in the fourth lane, McKeon and Park Tae-hwan were in the third and sixth lanes respectively, and Horton and Guy were in the second and seventh lanes respectively. After a smooth start, Sun Yang did not swim in front and maintained his rhythm. At 50 meters, Guy was in first place. At 100 meters, Sun Yang rushed to the third position, only slightly behind Park Tae-hwan and Guy. At 150 meters, Sun Yang had already surpassed Park Tae-hwan by 0.14 seconds, and Guy had fallen to third place. Halfway through, Sun Yang had pulled away from the 0.65-second advantage behind Park Tae-hwan. At 250 meters, Sun Yang's advantage was even more obvious, and Horton surpassed second but Sun Yang's advantage was more than 1 second. At 300 meters, Sun Yang had already taken the lead, throwing Horton far away and accelerating at his own pace. By 350 meters, Sun Yang's advantage had been 2.2 seconds. In the last 50 meters, Sun Yang accelerated his sprint without any suspense, and reached the finish line first in 3 minutes and 41 seconds 38, winning the event's three consecutive championships. Horton swam 3:43.85 to take the runner-up, and Italy's Detti won the third place with 3:43.93. Every drop of nutrition achieves every surpassing! Mengniu helped the Chinese swimming team fully face the 2017 Budapest World Championships.