The mixed relay competition at the 2023 SEA Games in Cambodia took place on 8 May 2023, at the Morodok Techo National Stadium in Phnom Penh.
Four teams of four athletes each took part of the competition.
Records Prior to this competition, the existing Asian and SEA Games records were as follows: ARMusa Isah, Aminat Yusuf Jamal, Salwa Eid Naser, Abbas Abubakar Abbas3:11.82Doha, Qatar29 September 2019GR Siripol Punpa, Supanich Poolkerd, Joshua Atkinson, Benny Nontanam3:19.29Hanoi, Vietnam14 May 2022
Results Rank Athlete Time Notes Quách Công Lịch, Trần Đình Sơn, Trần Nhật Hoàng, Hoàng Thị Ánh Thục, Nguyễn Thị Hằng, Nguyễn Thị Huyền 3:21.27 Chitdara Phretewek, Joseph Onuora, Patcharaporn Jongkaijak, Phattaraporn Dechanon, Sarawut Nuansi, Thipphanet Meechan 3:23.02 Frederick Ramirez, Joyme Sequita, Michael Del Prado, Umajesty Williams 3:23.69 4 Umar Osman, Abdul Wafiy Roslan, Muhammad Firdaus Musa, Chelsea Cassiopea Evali Bopulas, Mandy Goh Li, Zaimah Atifah Zainuddin 3:31.25
See also Athletics at the 2023 SEA Games – Men's Results Athletics at the 2023 SEA Games – Women's Results
References