[3][4] He played several sports growing up, including boxing and football, but ultimately decided to pursue badminton, which was his favorite.
[5] He was ranked 86th in the world by February 2024 and that month won the Uganda International, coming back from a 1–9 deficit to defeat Raghu Mariswamy.
[6] He reached the semi-finals of the April 2024 Kazakhstan International Challenge and by the end of that month was ranked 74th in the world by the BWF.
[4][7] Đức Phát qualified for the 2024 Summer Olympics by being the 34th-ranked player among those eligible for the men's singles event.
[7] He was named one of two flag bearers for Vietnam at the Olympics, along with archer Đỗ Thị Ánh Nguyệt.