Kwanti Race Course [c.1926-c.1941]
The location of the racecourse is shown on 'Map 1945' at http://www.hkmaps.hk/mapviewer.html
The earliest mention of the racecourse I've found in the newspapers is from 1926. Then it appears regularly through the 1930s until 1941 and the outbreak of war, as the newspapers reported races at the track. I don't see it mentioned again after the war though, and by the early 1950s the British Army had taken over the old racecourse site to use for a new barracks. I'll estimate the racecourse was in used from 1926-1941.
It is named after the Kwan Ti village, which is a short distance away to the east. (On modern maps the village name is spelled Kwan Tei.)