Question: who do richmond supporters consider their biggest rival
Answer: Arising from the fact that the two areas neighbour each other , Richmond and Collingwood were both highly successful in the late 1920s to the early 1930s ; the clubs played against each other in five grand finals between 1919 and 1929 ( Collingwood won in 1919 , 1927 , 1928 and 1929 , while Richmond won in 1920 ) .