At the 1934 Empire Games he won the bronze medal in the 100 yards event.

Chalmers also competed in the 1938 European Championships in Athletics held in Vienna and finished sixth in the 200 metre event.

[3] Chalmers worked as a machinist in a cardboard box factory before his athletic career, and was the youngest of five children.

His eldest sibling died during the Gallipoli Campaign during World War I. Chalmers lived in the Rudmore district of Portsmouth before World War II, but later moved to live near London's Heathrow Airport.

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