He is the current Malaysian 400 metres outdoor record holder with a time of 46.09 seconds.

[3] Umar currently studies industrial design at Ibrahim Sultan Polytechnic at Pasir Gudang, Malaysia.

[3] On his first SEA Games' participation, Umar won the gold medal in the men's 400m event and broke Malaysia's 400m national record.

[3] Umar also won the bronze medal in the men's 4x400m event with Firdaus Zemi, Ruslem Zikry Putra Roseli and Tharshan Shanmugam with a time of 3mins 8.82s.

[4] In July 2023, Umar failed to qualify for the finals of the 2023 Asian Athletics Championships in the men's 400m event after clocking 46.42 seconds in the semi-finals.