The Dayton Speedway was a race track in Dayton, Ohio, United States. It has been called the "Fastest 1/2 mile (plus 210 feet) in the world".
The track held events for NASCAR, AAA, MARC, ARCA, ASA, USAC, etc.
The track was opened in June 1934 as a flat "D shaped" 5/8 mile dirt track. The original track was a "copy" of the Legion Ascot Speedway.
Timeline - The following is a timeline of events from 1933 to the present:
Coordinates: 39°43′27″N 84°15′22″W / 39.72417°N 84.25611°W