Ismail's involvement in senior competitive badminton began when he joined the Dapat Badminton Party, winning numerous titles at both local and regional tournaments. Thereafter, he joined the Devonshire Badminton Party and was nurtured by Coach Yap Che Te. He soon became the "No. 2" singles player in Singapore, behind
Wong Peng Soon. He began playing doubles with
Ong Poh Lim whom he won the 1950
Malaysia Open men's doubles title. In 1951, Ismail and Ong swept all major tournament titles during an eight-month tour of Europe, including the Danish, French and British doubles titles. In 1952, he became world champion with the team of Malaya in the
Thomas Cup and won his second consecutive
Denmark Open men's doubles titles with Ong. As a pair, they also won seven consecutive
Singapore Open men's doubles titles from 1950 to 1956. Ismail's doubles partnership with Ong was described by
Wong Peng Soon as "the best doubles combination" he had ever seen. In the 1951
French Open men's singles semi-final, Ismail gave Ong a walkover so that the latter would be better rested for his final match against
Wong Peng Soon. Ong went on to defeat Wong in the men's singles final as well as winning the men's doubles title with Ismail. Ismail's dedication to badminton was laudable as he was still serving as advisor to the F&N Badminton Training Scheme up to his death. He had helped to coach the national team and the youths in the training scheme for several years. == Personal life ==