course a mode of action; "if you persist in that course you will surely fail"; "once a nation is embarked on a course of action it becomes extremely difficult for any retraction to take place"
speedway a racetrack for racing automobiles or motorcycles
stretch extension to or beyond the ordinary limit; "running at full stretch"; "by no stretch of the imagination"; "beyond any stretch of his understanding"
velodrome a banked oval track for bicycle or motorcycle racing