Hambleton represented Canada at the 41st Chess Olympiad. On the reserve board, he scored 3½/7 (+2–2=3). He played on the reserve board again at the 43rd Chess Olympiad. He lost to the 1937-rated Rijendra Rajbhandari in the first round, but won his last four games to finish on 4½/7 (+4–2=1). Hambleton is the No. 10 ranked Canadian player, with a rating of 2454.