Đỗ Quốc Luật gained his first international experience in 2015, when he finished fourth in the 5000 meter run at the Southeast Asian Games in Singapore in 14: 56.00 minutes , as well as over 10,000 meters in 30: 48.95 minutes. Two years later he won the bronze medal in the obstacle course at the Southeast Asian Games in Kuala Lumpur in 9: 08.72 minutes behind the Indonesian Atjong Tio Purwanto and his compatriot Phạm Tiến Sản . He also finished sixth in the 1500 meter run in 3: 57.70 minutes. In 2019 he was eliminated from the World Military Games in Wuhan in the obstacle course with 9:14.10 min in the preliminary round, but then won the Southeast Asian Games in Capas in 9: 04.50 min over this distance and was finished in the 10,000 meter run in 30 : 49.59 min fourth.
In 2019, Đỗ became the Vietnamese champion in the 10,000 meter run.
Personal best
1500 meters: 3: 57.70 min, August 24, 2017 in Kuala Lumpur
5000 meters: 14: 29.83 min, December 9, 2014 in Nam Định
10,000 meters: 30: 48.95 min, June 10, 2015 in Singapore
3000 m obstacle: 8: 59.6 min, December 1, 2018 in Hanoi