Definitions for "Head Race"
A long race in which rowers race a twisting course approximately 3 miles long.
A processional race over a longer distance, against the clock. The focus for the Michaelmas and Lent halves.
A race with boats starting at intervals, usually 10 seconds apart, usually held in fall and over a long and winding course.
In hydrologic terms, a channel which directs water to a water wheel; a forebay.