For what reason did China miss the final in the women's 4×100m relay race of Rio Olympic Games?

China once again complained that nine teams should be divided into two groups for the women's 4× 100 meter relay preliminaries of the Rio Olympic Games. China ranked eighth in the preliminaries, and the American women's team missed the final because of the drop. However, after the game, the United States appealed on the grounds of being interfered by Brazilian athletes, and finally obtained the qualification of individual semi-finals, ranking first in the preliminary round with a score of 4 1.77 seconds, and edging out China to advance to the final. After the game, the China team lodged a complaint again.

In the women's 4x 100 relay preliminaries of Rio Olympic Games, the United States lost its stick, and the appeal was successful, so it was a separate rematch. In the rematch, the United States successfully advanced to the final with a score of 4 1.76 seconds. After running for 42.70 seconds, China, which ranked eighth in the preliminary round, missed the final.