Mazlan Hamzah was eliminated in the heats of the 100 yards, of the 220 yards, and of the 4×440 yards (with Karu Selvaratnam, Mohamed bin Abdul Rahman, and Victor Asirvatham) at the 1962 British Empire and Commonwealth Games. In the British Empire and Commonwealth Games Hamzah competed for Malaya.
Personal Best: 100 – 10.8 (1965).
|1964 Summer||Tokyo||Athletics||Men's 4 × 100 metres Relay||Malaysia||MAS||6 h1 r1/3|
|1964 Summer||Tokyo||Athletics||Malaysia||MAS||Round One||Heat One||6||41.4|