Daniela Fra (3rd R) and Blanca Hervas (front) of team Spain compete during the women's 4x400m relay final at the World Athletics Relays Guangzhou 2025 in Guangzhou, south China's Guangdong Province, May 11, 2025. (Xinhua/Mao Siqian)

Julian Forte (L) of team Jamaica reacts after getting injured during the men's 4x100m relay qualification round 2 at the World Athletics Relays Guangzhou 2025 in Guangzhou, south China's Guangdong Province, May 11, 2025. (Xinhua/Lu Hanxin)

Team Spain celebrate after the women's 4x400m relay final at the World Athletics Relays Guangzhou 2025 in Guangzhou, south China's Guangdong Province, May 11, 2025. (Xinhua/Mao Siqian)

Justice Oratile of team Botswana poses with the bronze medal after the men's 4x400m relay final at the World Athletics Relays Guangzhou 2025 in Guangzhou, south China's Guangdong Province, May 11, 2025. (Xinhua/Li Ming)

Team Spain poses for a photo after winning the women's 4x400m relay final at the World Athletics Relays Guangzhou 2025 in Guangzhou, south China's Guangdong Province, May 11, 2025. (Xinhua/Liu Dawei)

Team USA celebrate after winning the mixed 4x400m relay final at the World Athletics Relays Guangzhou 2025 in Guangzhou, south China's Guangdong Province, May 11, 2025. (Xinhua/Song Yanhua)

Team USA pose with their new championship record after winning the mixed 4x400m relay final at the World Athletics Relays Guangzhou 2025 in Guangzhou, south China's Guangdong Province, May 11, 2025. (Xinhua/Song Yanhua)

Leungo Scotch of team Botswana poses with the bronze medal after the men's 4x400m relay final at the World Athletics Relays Guangzhou 2025 in Guangzhou, south China's Guangdong Province, May 11, 2025. (Xinhua/Li Ming)