On March 14, Beijing time, the first day of the short track speed skating World Championships, in the mixed relay competition that just ended, the Chinese team performed poorly and made a big mistake. Sun Long also made a serious mistake in the previous 1000m heats, and it was obvious that his fitness was greatly affected by fatigue.

China were placed in Group 3, along with South Korea, Belgium and Hungary. The Chinese team sent the main lineup of Fan Kexin, Wang Xinran, Sun Long and Liu Shaoang. At the beginning of the game, the Chinese team grabbed the first position and smoothly handed over to Wang Xinran, and the Korean women's team did not send the absolute strength combination of Kim Jili and Cui Minjing.

Liu Shaoang skated the third bat, China remained firmly in the first place, Belgium came to second place, and the South Korean team fell to third. The South Korean team surpassed Belgium in the second stick of the women's team to come to second, at this time the Belgian and Hungarian teams were unable to keep up with the Chinese team, and Sun Long made a serious mistake in the last sprint again, fell on the ice, and the Chinese team finished fourth and missed the semifinals.

It is worth mentioning that the Dutch team skated 2:35.339 in the first set, which also broke the world record. The Canadian team made a serious mistake when they were leading in the second group, and the baton handover was not matched, and then the U.S. team and the Canadian team team collided violently and fell, and the referee immediately called a halt to the game, and the Canadian team and the U.S. team slid back to advance.