Day 1 of World Athletics Relays Guangzhou 2025

Andre De Grasse (4th R) of team Canada competes during the men's 4x100m relay round 1 at the World Athletics Relays Guangzhou 2025 in Guangzhou, south China's Guangdong Province, May 10, 2025. (Xinhua/Li Ming)

Victoria Ohuruogu of team Britain competes during the women's 4x400m relay round 1 at the World Athletics Relays Guangzhou 2025 in Guangzhou, south China's Guangdong Province, May 10, 2025. (Xinhua/Li Ming)

Maria Isabel Perez (C) of Spain competes during the Women's 4x100 Metres Relay qualifying round 1 at the World Athletics Relays Guangzhou 2025 in Guangzhou, south China's Guangdong Province, May 10, 2025. (Xinhua/Song Yanhua)

Akani Simbine of South Africa competes during the Men's 4x100 Metres Relay qualifying round 1 at the World Athletics Relays Guangzhou 2025 in Guangzhou, south China's Guangdong Province, May 10, 2025. (Xinhua/Song Yanhua)

Eugene Amo-Dadzie (L) of Britain competes during the Men's 4x100 Metres Relay qualifying round 1 at the World Athletics Relays Guangzhou 2025 in Guangzhou, south China's Guangdong Province, May 10, 2025. (Xinhua/Song Yanhua)

Nethaneel Mitchell-Blake (L) and Romell Glave of Britain compete during the Men's 4x100 Metres Relay qualifying round 1 at the World Athletics Relays Guangzhou 2025 in Guangzhou, south China's Guangdong Province, May 10, 2025. (Xinhua/Song Yanhua)

Rani Vincke (C) of Belgium celebrates after the Women's 4x100 Metres Relay qualifying round 1 at the World Athletics Relays Guangzhou 2025 in Guangzhou, south China's Guangdong Province, May 10, 2025. (Xinhua/Song Yanhua)

Shelly-Ann Fraser-Pryce of Jamaica reacts before the Women's 4x100 Metres Relay qualifying round 1 at the World Athletics Relays Guangzhou 2025 in Guangzhou, south China's Guangdong Province, May 10, 2025. (Xinhua/Song Yanhua)

Rani Vincke (R) of Belgium celebrates after the Women's 4x100 Metres Relay qualifying round 1 at the World Athletics Relays Guangzhou 2025 in Guangzhou, south China's Guangdong Province, May 10, 2025. (Xinhua/Song Yanhua)

Akani Simbine (front) of team South Africa competes during the men's 4x100m relay round 1 at the World Athletics Relays Guangzhou 2025 in Guangzhou, south China's Guangdong Province, May 10, 2025. (Xinhua/Li Ming)