The highlights of his career were winning the Australasian long distance road championship in 1909 and competing in the 1914 Tour de France.
Munro won the championship by winning the Blue Riband for the fastest time in the Warrnambool to Melbourne race.
Munro had a long association with the Warrnambool and his other efforts were 30th in 1907,[2] 45th and fastest rider receiving over 10 minute start in 1908 [3] and 60th in 1910.
[10] His return to cycling in 1913 was successful, starting in four Victorian races between 25 and 80 miles finishing either first or fastest times in each with victories over top riders including twice defeating Don Kirkham.
In 1931 Munro was said to have accurately predicted that his time would be easily broken because of the favorable conditions, a faster course than in 1909 and the use of singles.