On 23 March 2010, Hyrulnizam made his AFC Champions League debut, coming on for Shahril Jantan in the 89th minute, keeping a clean sheet as well as two saves against Japan club, Gamba Osaka.
His impressive performance during his stint with Tampines Rover FC led to him being nominated by Goal.com on 24 February 2014 as its Southeast Asia Player of the Week.
[5] After a bright spell at Tampines Rover, he switched clubs once again, joining rivals Home United.
[5] On 1 June 2012, Hyrulnizam made his senior international debut for the Singapore national football team in a friendly match against Hong Kong.
[10] Following his international debut, he served as back-up to compatriots Hassan Sunny and Izwan Mahbud as the 3rd choice national goalkeeper.