WCH Tokyo 25 facts and figures: mixed 4x400m

Last three sets of World Athletics Championships medallists

2023: 1 United States (USA) – 3:08.80, 2 Great Britain (GBR) – 3:11.06, 3 Czechia (CZE) – 3:11.98
2022: 1 Dominican Republic (DOM) – 3:09.82, 2 Netherlands (NED) – 3:09.90, 3 United States (USA) – 3:10.86
2019: 1 United States (USA) – 3:09.34, 2 Jamaica (JAM) – 3:11.78, 3 Bahrain (BRN) – 3:11.82

Last two sets of Olympic medallists

2024: 1 Netherlands (NED) – 3:07.43, 2 United States (USA) – 3:07.74, 3 Great Britain (GBR) – 3:08.01
2020: 1 Poland (POL) – 3:09.87, 2 Dominican Republic (DOM) – 3:10.21, 3 United States (USA) – 3:10.22

Fastest winning time in World Athletics Championships history

3:08.80 - United States (USA), 2023

Slowest winning time in World Athletics Championships history

3:09.82 - Dominican Republic (DOM), 2022

Best marks on Japanese soil

3:09.87 1 Poland (POL) - Tokyo (Olympics) 31.07.2021
3:10.21 2 Dominican Republic (DOM) - Tokyo (Olympics) 31.07.2021
3:10.22 3 United States (USA) - Tokyo (Olympics) 31.07.2021

Best marks on Asian soil

3:09.34 1 United States (USA) - Doha (World Championships) 29.09.2019
3:09.54 1 United States (USA) - Guangzhou (World Relays) 11.05.2025
3:09.87 1 Poland (POL) - Tokyo (Olympics) 31.07.2021

Biggest winning margin

2.44s – 2019: United States (USA) – 3:09.34, Jamaica (JAM) – 3:11.78

​​Smallest winning margin

0.08s – 2022: Dominican Republic (DOM) – 3:09.82, Netherlands (NED) – 3:09.90

Best mark by round

• Heat — 3:10.41 United States (USA), 2023
• Final — 3:08.80 United States (USA), 2023

Multiple winners

2019/23 - United States (USA)

Winners by country

• 2 - United States 
• 1 - Dominican Republic

Five historic facts

• All three mixed 4x400m finals at the World Championships have been won with sub-3:10 winning times 
• The United States remain the only nation to have won multiple medals in the mixed 4x400m at the World Championships
• The fastest splits recorded in the mixed relay at the World Championships are: 43.86 Justin Robinson (USA) in Budapest 2023; and 48.47 Marileidy Paulino (DOM) in Oregon 2022
• Yemi Mary John (GBR) became the event's youngest female medallist when she helped Great Britain to silver in Budapest 2023 at 20y/108d
• The Polish team for Tokyo 2025 includes three of the four members who won inaugural Olympic gold in Tokyo 2020: Justyna Święty-Ersetic, Natalia Bukowiecka and Kajetan Duszynski 

​​Potential storylines

• Who among the big names will commit to the mixed 4x400m? Allyson Felix (USA), Salwa Eid Naser (BRN), Femke Bol (NED), Lieke Klaver (NED) and Marileidy Paulino (DOM) have all won mixed relay medals in the past 
• Can Olympic champions Netherlands (NED) become the first European winners of the mixed 4x400m title since the event was introduced to the programme in Doha in 2019?
• Can inaugural Olympic champions and world leaders Poland (POL) win their first medal in this event at the World Championships?